Search results
Results from the WOW.Com Content Network
The gun be robust and simple to disassemble and reassemble. The gun be capable of killing a man at 50 m (55 yd). This last criterion was seen to demand a caliber of 9 mm (0.35 in) or larger, a bullet mass of around 8 g (120 gr), and a muzzle velocity of 350 m/s (1,100 ft/s).
The initial engine choice in 1954 for what was known at the time as "Medium Gun Tank No.2", later designated the "FV4201" and given the service name 'Chieftain', was a Rolls-Royce diesel V8, however during the Chieftain's design phase NATO introduced a policy in 1957 requiring all armoured fighting vehicles to have a multi-fuel capability.
The magazine is 3D-printable, and the entire design works without needing any commonly regulated, commercial gun parts. The bolt carrier assembly, a stress-bearing component, is manufactured from steel bar stock and processed by sawing, drilling, filing, cleaning, and using adhesives to secure the steel parts to a plastic housing.
Diagram of long-stroke gas operation system Long stroke gas piston, from an AK-74. With a long-stroke system, the piston is mechanically fixed to the bolt group and moves through the entire operating cycle. This system is used in weapons such as the Bren light machine gun, AK-47, Tavor, FN Minimi, FN MAG, FN FNC, and M1 Garand.
In most automatic firearms that use delayed blowback, recoil, or gas operation, the bolt itself is housed within the larger bolt carrier group (BCG), which contains additional parts that receives rearward push from a gas tube (direct impingement) or a gas piston (short-stroke or long-stroke piston) system.
Built-up construction was the norm for guns mounted aboard 20th century dreadnoughts and contemporary railway guns, coastal artillery, and siege guns through World War II. Diagram illustrating arrangement of components of a built-up gun, in this case the British BL 6-inch Mark IV naval gun of the 1880s
The vehicle usually has a one-man turret armed with a .50 BMG (12.7x99mm NATO) M2 Browning heavy machine gun. [10] Some vehicles were fitted with a one-person gun turret armed with a 25mm cannon and a co-axial 7.62mm General-purpose machine gun. [10] The turrets can be retrofitted with an automatic grenade launcher via pintle mount. [2]
A homemade firearm, also called a ghost gun or privately made firearm, is a firearm made by a private individual, in contrast to one produced by a corporate or government entity. [1] The term ghost gun is used mostly in the United States by gun control advocates, but it is being adopted by gun rights advocates and the firearm industry. [2]