Top 10 guns in the world

                No:10   Heckler and Koch HK416 

The HK416 A5 is a further development of the HK416 assault rifle in 5.56 x 45 mm NATO calibre. The most striking changes compared to its previous versions as well as to market available AR platforms include an improved and tool-less gas regulator for suppressor use, a redesigned, user-friendly lower receiver, which allows complete ambidextrous operation of the weapon and ensures optimised magazine compatibility, as well as numerous technical improvements to maximize the operator safety, reliability, ammunition compatibility and durability under real operating conditions.

Features

• Modified and tool-less gas regulator for suppressor use
• Safety-/Fire selector lever can be set to safe when the hammer is in the cocked or uncocked position
• Over the beach (OTB) capability
• Completely ambidextrous operating controls (bolt catch-, Magazine release-, safety-/fire selector lever and charging handle)
• "Winter" trigger guard for use with gloves and cold weather clothing
• Non-stop NATO-Stanag 4694 top rail for use of various mechanical and optical sights (incl. night vision/thermal)
• Redesigned ergonomic pistol grip with storage compartment for field stripping tool
• Enlarged Bolt catch lever and protective barrier against accidental discharge
• "Slim line" Telescopic buttstock
• Optimised receiver geometry, modified assembly interfaces and improved receiver connections
• Receiver extension to stabilise and accomplish drop test criteria under real conditions
• Increased magazine compatibility in accordance with NATO-STANAG-DRAFT 4179 (M4/M16 Magazines)
• 40 mm Low velocity GLM/M320 interface

Variants | Options

• 11“, 14.5“, 16.5“ and 20“ barrel lenghts available
• Black and green brown colour scheme
• Compatible with HK 40 mm low velocity GLM/M320
• Compatible with HK steel and polymer magazines

Distinctive features of the variants

• The 20" Variant has a long handguard with a gas regulator window
• Handguard with integrated flip up sight on 11" Variant
• Modular interface for Bayonet and foldable front sight on barrel of the 14.5", 16.5" and 20" variant

    N0: 9 Accuracy International AS50 Sniper Rifle

Accuracy International AS50

Type Anti-materiel rifle, sniper rifle

Place of origin United Kingdom

Production history

Designed 2007

Produced 2007

Specifications

Weight 27 lb (12.2 kg) (no scope/sight, empty mag)

Length 53.9" (1369 mm)

Barrel length 692 mm

Cartridge .50 BMG

Action Gas operation, direct impingement[citation needed]

Rate of fire semi-automatic, estimated at 5 rounds/1.6 seconds

Effective firing range 1,800 m[1][2]

Feed system 5 or 10-round detachable box magazine

                     No: 8  FN F2000 Assault Rifle

F2000 S of the Slovenian Army
Type	Bullpup service rifle
Place of origin	Belgium
Service history
In service	2001–present
Used by	See Users
Wars	See Conflicts
Production history
Designer	Nick Moretti[citation needed] Luke Riley[citation needed]
Designed	1995–2001
Manufacturer	FN Herstal
Produced	2001–present
Variants	See Variants F2000 F2000 Tactical FS2000 F2000 S
Specifications
Weight	3.6 kg (7.9 lb) (F2000) 3.39 kg (7.5 lb) (F2000 Tactical)  3.65 kg (8.0 lb) (FS2000) 3.44 kg (7.6 lb) (FS2000 Tactical) [4]
Length	688 mm (27.1 in) (F2000)  688 mm (27.1 in) (F2000 Tactical)  744 mm (29.3 in) (FS2000 744 mm (29.3 in) (FS2000 Tactical)
Barrel length	400 mm (16 in) (F2000)  400 mm (16 in) (F2000 Tactical)  443 mm (17.4 in) (FS2000)  443 mm (17.4 in) (FS2000 Tactical)
Width	81.3 mm (3.20 in)
Height	259.1 mm (10.20 in)
Cartridge	5.56×45mm NATO
Action	Gas-operated, rotating bolt
Rate of fire	850 rounds/min
Muzzle velocity	900 m/s (2,953 ft/s)
Effective firing range	500 m (1,600 ft)
Feed system	Detachable box magazines; capacities: 10 rounds (restricted) 30 rounds (standard STANAG)
Sights	1.6× magnified telescopic sight, notch back-up sight

        No: 7  Thompson M1921 Submachine Gun

The Thompson sub machine gun is an American sub machine gun, invented by John T. Thompson in 1918, that became infamous during the Prohibition era. It was a common sight in the media of the time, being used by both law enforcement officers and criminals. The Thompson sub machine gun was also known informally as the "Tommy Gun", "Annihilator", "Chicago Typewriter", "Chicago Piano", "Chicago Style", "Chicago Organ Grinder", "Trench Broom", "Trench Sweeper", "The Chopper", and simply "The Thompson".The Thompson was favored by soldiers, criminals, police, and civilians alike for its large .45 ACP cartridge, accuracy, and high volume of automatic fire. It has since gained popularity among civilian collectors for its historical significance. It has had, and continues to have, considerable significance in popular culture, especially in works about the U.S.'s Prohibition era and World War II, and hence is among the best-known firearms in recent history.

features

Early versions of the Thompson, the Model of 1919, had a fairly high cyclic rate of fire, as high as 1,200 rounds per minute (rpm), with most Model of 1921 at 800 rpm. In 1927, the U.S. Navy ordered 500 Thompsons but requested a lower rate of fire. Thompson requested Payne develop a method of reducing the cyclic rate of fire. Payne replaced the actuator with a heavier one and the recoil spring with a stiffer one; the changes reduced the rate of fire from 800 to the 600 rpm of the U.S.Navy Model of 1928. Later M1 and M1A1 Thompsons averaged also 600 rpm. This rate of fire, combined with a rather heavy trigger pull and a stock with an excessive drop, increases the tendency for the barrel to climb off target in automatic fire. Compared to modern 9mm submachine guns, the .45 Thompson is quite heavy, weighing roughly the same as the contemporary M1 Garand semi-automatic rifle, and requires lots of cleaning. This was one of the major complaints against the weapon made by service members of the U.S. Army issued the Thompson.Thompson M1928A1, field stripped

Although the drum magazine provided significant firepower, in military service it was found to be overly heavy and bulky, especially when slung on patrol or on the march. The M1 Thompson drum magazine was rather fragile, and cartridges tended to rattle inside it, producing unwanted noise. For these reasons, the 20-round and later 30-round box magazines soon proved most popular with military users of the M1928A1, and drum compatibility was not included in the design of the wartime M1 and M1A1 models. The Thompson was one of the earliest submachine guns to incorporate a double-column, double-feed box magazine design, which undoubtedly contributed to the gun's reputation for reliability. In addition, the gun performed better than most after exposure to rain, dirt, and mud

The selective-fire (semi- or full automatic) Thompson fires from the "open bolt" position, in which the bolt is held fully to rearward by the sear when cocked. When the trigger is depressed, the bolt is released, traveling forward to chamber and simultaneously fire the first and subsequent rounds until either the trigger is released or the ammunition is exhausted. This eliminates the risk of "cook-off", which can sometimes occur in closed-bolt automatic weapons.

                   No: 6  MG3 Machine Gun

The MG 3 is a German general-purpose machine gun chambered for the 7.62×51mm NATO cartridge. The weapon's design is derived from the World War II era MG 42 universal machine gun that fired the 7.92×57mm Mauser round.

The MG 3 was standardized in the late 1950s and adopted into service with the newly formed Bundeswehr, where it continues to serve to this day as a squad support weapon and a vehicle-mounted machine gun. The weapon and its derivatives have also been acquired by the armed forces of over 30 countries. Production rights to the machine gun were purchased by Italy (MG 42/59), Spain, Pakistan (MG 1A3), Greece, Iran, Sudan and Turkey.

features

The machine gun has an automatic-only trigger mechanism and a cross-bolt safety in the form of a button that is operated by the shooting hand (in its "safe" position the bolt release is disabled). The weapon fires from an open bolt. The cyclic rate can be altered by installing different bolts and recoil springs.

The MG 3 feeds from the left side through a feed block using metal, 50-round continuous-link DM1 ammunition belts (which can be combined by cartridge) or disintegrating-link M13 or DM6 belts. In the light machine gun role, the MG 3 is deployed with a 100-round (or 120-round in case of disintegrating belts) belt fitted inside a synthetic ammunition drum developed by Heckler & Koch that is latched on to the left side of the receiver. The rear wall of the drum is transparent and serves as a visual indicator for the amount of ammunition available. The feed system operates through a feed arm that is housed in the feed cover. Two feed pawls are linked to the front end of the arm by an intermediate link and move in opposite directions, moving the belt in two stages as the bolt moves back and forward during firing.

 No:5 XM307 Advanced Crew Served Weapon

The XM307 Advanced Crew Served Weapon (ACSW) was a developmental 25 mm belt-fed grenade machine gun with smart shell capability. It is the result of the OCSW or Objective Crew Served Weapon project. It is lightweight and designed to be two-man portable, as well as vehicle mounted. The XM307 can kill or suppress enemy combatants out to 2,000 meters (2,187 yd), and destroy lightly armored vehicles, watercraft, and helicopters at 1,000 meters (1,094 yd). The project was canceled in 2007.

features

System

• Weight: 50 lb (22.5 kg) (gun, mount, and fire control)
• Fire Control: full solution, day/night
• Portability: two-man portable and vehicle mountable
• Stability: up to 18 inch (457 mm) tripod height
• Environmental: operationally insensitive to conditions

Gun

• Dimensions: 9.9 W × 7.2 H × 52.3 L max inches (43.3 L charged) / 251 mm × 183 mm × 1328 mm (1100 mm charged)
• Rate of Fire: 250 rounds per minute, automatic
• Dispersion: less than 1.5 mils, one sigma radius
• Range: lethal and suppressive out to 2,000 m
• Ammunition: high-explosive air bursting, armor-piercing, and training ammunition (HE, AP, TP, TP-S)
• Feed System: weapon-mountable ammunition can (left feed)

No:4 Kalashnikov AK-47 Assault Rifle

A Kalashnikov rifle is any one of a series of automatic rifles based on the original design of Mikhail Kalashnikov. They are officially known in Russian as "Avtomat Kalashnikova" ("Kalashnikov's Automatic Gun"; Russian: Автома́т Кала́шникова), but are widely known as Kalashnikovs, AKs, or in Russian slang, as a "Kalash". They were originally manufactured in the Soviet Union, primarily by Izhmash, but these rifles and their variants are now manufactured in many other countries.

No: 3 Uzi Submachine Gun

The Uzi (Hebrew: עוזי‎‎, officially cased as UZI) pronunciation:  is a family of Israeli open-bolt, blowback-operated submachine guns. Smaller variants are considered to be machine pistols. The Uzi was one of the first weapons to use a telescoping bolt design which allows the magazine to be housed in the pistol grip for a shorter weapon.

The first Uzi sub machine gun was designed by Major Uziel Gal in the late 1940s. The prototype was finished in 1950. First introduced to IDF special forces in 1954, the weapon was placed into general issue two years later. The Uzi has found use as a personal defense weapon by rear-echelon troops, officers, artillery troops and tankers, as well as a frontline weapon by elite light infantry assault forces.

The Uzi has been exported to over 90 countries. Over its service lifetime, it has been manufactured by Israel Military Industries, FN Herstal, and other manufacturers. From the 1960s through the 1980s, more Uzi submachine guns were sold to more military, law enforcement and security markets than any other submachine gun ever made.

No:2 DSR-Precision DSR 50 Sniper Rifle

The DSR-Precision DSR-50 is a bullpup bolt-action sniper and anti-materiel rifle developed and manufactured by DSR-Precision GmbH of Germany, and is essentially an upscaled DSR-1, chambered in .50 BMG.

The DSR-50 is based on DSR-Precision's earlier DSR-1, and includes modifications necessary to fire the more powerful .50 BMG, including a hydraulic recoil buffer in the buttstock and an innovative muzzle attachment. This muzzle device, described as a 'blast compensator', is a combination sound suppressor and muzzle brake, and is notable in its attempt at moderating the .50 BMG's muzzle blast and recoil, unlike contemporary large-caliber rifles, which are typically equipped with muzzle brakes only. Like the DSR-1, this rifle retains its bullpup configuration, allowing a longer barrel while retaining a shorter overall length (OAL), which is an important consideration for large caliber rounds such as .50 BMG, and focuses the weapon's balance towards the buttstock, compensating for the muzzle heavy attachments standard on the DSR-50. The DSR-50 also retains some of the DSR-1's features, such as a top mounted bipod, "butt spike" monopod, free-floating barrel, fully adjustable cheekrest and buttstock, and forward magazine holder.

The DSR-50 Is Seen In Video Games like Call Of Duty Black Ops 2

No:1 The tracking point rifle

This smart rifle doesn’t shoot itself. Rather, it still requires users to locate the target, input windage, place the rifle off Safe, make a good tag and pull the trigger. TrackingPoint is a system, one designed to make first-round hits more probable at any distance.

The bolt-action rifle, telescopic riflescope and machined cartridge ammunition are innovations of the 19th century. Small arms have remained isolated from the microelectronics and computing revolution until the development of the Precision Guided Firearm (PGF) by TrackingPoint started in 2011.

The TrackingPoint PGF integrates microelectronics, microprocessors and wireless communication technology for the purpose of designating a target, tracking, networking and fire control. The result is a system that quickly enables a shooter to effect multiple shots with precision at multiple unknown distances. It went from concept to prototype to maturity in just two years.

For Video      click here

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How to Create a Password Protected Folder without any Extra Software

Most of us have private data. Not all of us have a private computer to keep that data. So, we just end up with other people viewing that data. Although password protecting software do work, it is almost useless to hide private data with these software(because we are always questioned as to what it is that we are hiding with the help of these software). 

Hidden folders do not work as anyone can use Folder Options to make a hidden folder visible. So, we need an alternative way to create hidden password protected folders which only we can access. And that is exactly what we will learn in this post.

With this trick, you can create a secure password protected folder in windows which no one except you can access. To use this trick, follow the instructions given below:-

Step 1: Create a folder.

Step 2: Create a text document inside that folder.

 

Step 3: Paste the following code inside the text document.-

cls 
@ECHO OFF 
title Folder Private 
if EXIST "HTG Locker" goto UNLOCK 
if NOT EXIST Private goto MDLOCKER 
:CONFIRM 
echo Are you sure you want to lock the folder(Y/N) 
set/p "cho=>" 
if %cho%==Y goto LOCK 
if %cho%==y goto LOCK 
if %cho%==n goto END 
if %cho%==N goto END 
echo Invalid choice. 
goto CONFIRM 
:LOCK 
ren Private "HTG Locker" 
attrib +h +s "HTG Locker" 
echo Folder locked 
goto End 
:UNLOCK 
echo Enter password to unlock folder 
set/p "pass=>" 
if NOT %pass%== PASSWORD_GOES_HERE goto FAIL 
attrib -h -s "HTG Locker" 
ren "HTG Locker" Private 
echo Folder Unlocked successfully 
goto End 
:FAIL 
echo Invalid password 
goto end 
:MDLOCKER 
md Private 
echo Private created successfully 
goto End 
:End

Step 4: Change the PASSWORD_GOES_HERE text to the password you want to set. Now go ahead and save the file as locker.bat.






Step 5: Now run your batch file by double clicking on it the first time you run it, it will create a folder called Private.  





This is where you can store all your secret things. When you have finished adding all your stuff to the Private folder,




 run locker.bat again.








This time you will be asked if you sure that you want to lock the folder,



 press the “Y” key and hit enter to lock your folder.









You will see that your Private folder quickly disappears.








If you run the script yet again, you will be ask for a password.






If you enter the same password as you set in the script the Private folder will 






reappear if you enter the incorrect password the script will just Terminate.

6 Best programming language for software programmer

6 Best programming language for software programmer

  1. Java

                                   

Java is a general-purpose computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible. It is intended to let application developers "write once, run anywhere" (WORA), meaning that compiled Java code can run on all platforms that support Java without the need for recompilation. Java applications are typically compiled to byte code that can run on any Java virtual machine (JVM) regardless of computer architecture. As of 2016, Java is one of the most popular programming languages in use, particularly for client-server web applications, with a reported 9 million developers. Java was originally developed by James Gosling at Sun Micro systems (which has since been acquired by Oracle Corporation) and released in 1995 as a core component of Sun Micro systems' Java platform. The language derives much of its syntax from C and C++, but it has fewer low-level facilities than either of them.

The original and reference implementation Java compilers, virtual machines, and class libraries were originally released by Sun under proprietary licences. As of May 2007, in compliance with the specifications of the Java Community Process, Sun relicensed most of its Java technologies under the GNU General Public License. Others have also developed alternative implementations of these Sun technologies, such as the GNU Compiler for Java (bytecode compiler), GNU Classpath (standard libraries), and IcedTea-Web (browser plugin for applets).

The latest version is Java 8, which is the only version currently supported for free by Oracle, although earlier versions are supported both by Oracle and other companies on a commercial basis.

2. C++

C++ (pronounced cee plus plus) is a general-purpose programming language. It has imperative, object-oriented and generic programming features, while also providing facilities for low-level memory manipulation.

It was designed with a bias toward system programming and embedded, resource-constrained and large systems, with performance, efficiency and flexibility of use as its design highlights. C++ has also been found useful in many other contexts, with key strengths being software infrastructure and resource-constrained applications, including desktop applications, servers (e.g. e-commerce, web search or SQL servers), and performance-critical applications (e.g. telephone switches or space probes). C++ is a compiled language, with implementations of it available on many platforms and provided by various organizations, including the Free Software Foundation (FSF's GCC), LLVM, Microsoft, Intel and IBM.

C++ is standardized by the International Organization for Standardization (ISO), with the latest standard version ratified and published by ISO in December 2014 as ISO/IEC 14882:2014 (informally known as C++14). The C++ programming language was initially standardized in 1998 as ISO/IEC 14882:1998, which was then amended by the C++03, ISO/IEC 14882:2003, standard. The current C++14 standard supersedes these and C++11, with new features and an enlarged standard library. Before the initial standardization in 1998, C++ was developed by Bjarne-- Stroustrup at Bell Labs since 1979, as an extension of the C language as he wanted an efficient and flexible language similar to C, which also provided high-level features for program organization.

Many other programming languages have been influenced by C++, including C#, D, Java, and newer versions of C (after 1998).

3. Python

Python is a widely used high-level, general-purpose, interpreted, dynamic programming language. Its design philosophy emphasizes code readability, and its syntax allows programmers to express concepts in fewer lines of code than possible in languages such as C++ or Java . The language provides constructs intended to enable writing clear programs on both a small and large scale.

Python supports multiple programming paradigms, including object-oriented, imperative, functional programming, and procedural styles. It features a dynamic type system and automatic memory management and has a large and comprehensive standard library.

Python interpreters are available for many operating systems, allowing Python code to run on a wide variety of systems. CPython, the reference implementation of Python, is open source software and has a community-based development model, as do nearly all of its variant implementations. C Python is managed by the non-profit Python Software Foundation.-

                                                                                         4. Php

PHP is a server-side scripting language designed primarily for web development but also used as a general-purpose programming language. Originally created by Rasmus Lerdorf in 1994, the PHP reference implementation is now produced by The PHP Development Team. -PHP originally stood for Personal Home Page, but it now stands for the recursive acronym PHP: Hypertext Preprocessor.

PHP code may be embedded into HTML code, or it can be used in combination with various web template systems, web content management systems and web frameworks. PHP code is usually processed by a PHP interpreter implemented as a module in the web server or as a Common Gateway Interface (CGI) executable. The web server combines the results of the interpreted and executed PHP code, which may be any type of data, including images, with the generated web page. PHP code may also be executed with a command-line interface (CLI) and can be used to implement standalone graphical applications.

The standard PHP interpreter, powered by the Zend Engine, is free software released under the PHP License. PHP has been widely ported and can be deployed on most web servers on almost every operating system and platform, free of charge.

The PHP language evolved without a written formal specification or standard until 2014, leaving the canonical PHP interpreter as a de facto standard. Since 2014 work has gone on to create a formal PHP specification.

                                                                                            5. Java Script

JavaScript is a high-level, dynamic, untyped, and interpreted programming language. It has been standardized in the ECMAScript language specification. Alongside HTML and CSS, JavaScript is one of the three core technologies of World Wide Web content production; the majority of websites employ it, and all modern Web browsers support it without the need for plug-ins. JavaScript is prototype-based with first-class functions, making it a multi-paradigm language, supporting object-oriented, imperative, and functional programming styles. It has an API for working with text, arrays, dates and regular expressions, but does not include any I/O, such as networking, storage, or graphics facilities, relying for these upon the host environment in which it is embedded.

Although there are strong outward similarities between JavaScript and Java, including language name, syntax, and respective standard libraries, the two are distinct languages and differ greatly in their design. JavaScript was influenced by programming languages such as Self and Scheme.

JavaScript is also used in environments that are not Web-based, such as PDF documents, site-specific browsers, and desktop widgets. Newer and faster JavaScript virtual machines (VMs) and platforms built upon them have also increased the popularity of JavaScript for server-side Web applications. On the client side, developers have traditionally implemented JavaScript as an interpreted language, but more recent browsers perform just-in-time compilation. Programmers also use JavaScript in video-game development, in crafting desktop and mobile applications, and in server-side network programming with run-time environments such as Node.js.-                                        

                                                                                                6. Dot net

.NET Framework (pronounced dot net) is a software framework developed by Microsoft that runs primarily on Microsoft Windows. It includes a large class library known as Framework Class Library (FCL) and provides language interoperability (each language can use code written in other languages) across several programming languages. Programs written for .NET Framework execute in a software environment (in contrast to a hardware environment) known as Common Language Runtime (CLR), an application virtual machine that provides services such as security, memory management, and exception handling. (As such, computer code written using .NET Framework is called "managed code".) FCL and CLR together constitute .NET Framework.

FCL provides user interface, data access, database connectivity, cryptography, web application development, numeric algorithms, and network communications. Programmers produce software by combining their own source code with .NET Framework and other libraries. .NET Framework is intended to be used by most new applications created for the Windows platform. Microsoft also produces an integrated development environment largely for .NET software called Visual Studio.

.NET Framework started out as a proprietary framework, although the company worked to standardize the software stack almost immediately, even before its first release. Despite the standardization efforts, developers—particularly those in the free and open-source software communities—expressed their uneasiness with the selected terms and the prospects of any free and open-source implementation, especially with regard to software patents. Since then, Microsoft has changed .NET development to more closely follow a contemporary model of a community-developed software project, including issuing an update to its patent promise to address the concerns.

.NET Framework led to a family of .NET platforms targeting mobile computing, embedded devices, alternative operating systems and browser plugins. A reduced version of the framework, .NET Compact Framework, is available on Windows CE platforms, including Windows Mobile devices such as smartphones. .NET Micro Framework is targeted at severely resource-constrained embedded devices. Silverlight was available as a web browser plugin. Mono is available for many operating systems and is customized into popular smartphone operating systems (Android and iOS) and game engines. .NET Core targets cross-platform and cloud-based workloads in addition to the Universal Windows Platform (UWP).