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The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the .223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as .223 Remington, since this can result in damage to the rifle or injury to the shooter. [1]
The 7.62×40mm Wilson Tactical (7.62×40mm WT) is a centerfire rifle cartridge introduced in 2011 by Wilson Combat. The goal was to produce an accurate, low-recoil.30-caliber hunting cartridge that could be used in an AR-15-type rifle using as many standard components as possible.
The below table gives a list of firearms that can fire the 7.62×39mm cartridge, first developed and used by the Soviet Union in the late 1940s. [1] The cartridge is widely used due to the worldwide proliferation of Russian SKS and AK-47 pattern rifles, as well as RPD and RPK light machine guns.
The 7.62×39mm (aka 7.62 Soviet, formerly .30 Russian Short) [5] round is a rimless bottlenecked intermediate cartridge of Soviet origin. The cartridge is widely used due to the global proliferation of the AK-47 rifle and related Kalashnikov rifles , the SKS semi automatic rifle, as well as the RPD and RPK light machine guns .
The Mk47 was publicly announced for a release in 2014. [2] [3] In 2015, CMMG released its first production Mk47s to stores throughout the US.[4] [5]According to CMMG Production Manager Tyson Bradshaw, he mentioned that CMMG made the rifle due to the need of "consumers to have a reliable, U.S.-made rifle that could properly handle the dimensions of the 7.62×39mm cartridge.
OTs-14-1A-04 7,62/40 – Grenade Launcher variant with a long barrel and a GP-30 under-barrel grenade launcher. OTs-14-2A – Experimental model chambered in 5.45×39mm M74 Soviet. Not adopted due to redundancy caused by preference for the better ballistic performance of the 7.62×39mm round when fired through a short barrel.
The K2 uses the same magazine as the M16. The barrel rifling has 6 grooves, 185 mm (1-in-7.3) right hand twist. The K2 has 3 selective firing modes: semi-auto, 3-round burst, and full automatic. KNP combat police officers armed with Daewoo K2s. Note the folded buttstock.
7.62×39mm: Action: Gas-operated: Rate of fire: 650 rounds/min: Muzzle velocity: 731 m/s (2,398 ft/s) Feed system: 20-round detachable box magazine 30-round detachable box magazine Also compatible with 40-round box magazines and 75-round drum magazines from the RPK: Sights: Iron sights