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Rate of fire: 700–800 rounds/min cyclic sustained (M16A1) [14] 700–900 rounds/min cyclic sustained ... The M16 has a safe/semi/auto selective fire trigger group ...
Typical cyclic rates of fire are 600–1100 rpm for assault rifles, 400–1400 rpm for submachine guns and machine pistols, and 600–1,500 rpm for machine guns. M134 Miniguns mounted on attack helicopters and other combat vehicles can achieve rates of fire of over 100 rounds per second (6,000 rpm).
In a standard issue M16, the gas tube is roughly 16 inches (410 mm) long to produce an automatic (cyclic) rate of fire of approximately 650 rounds per minute. Shortening the barrel increases the rate of fire significantly and thereby makes the weapon difficult to control and less reliable.
Or, alternatively, Army officials omitted the feature to discourage troops from employing the M231 in lieu of the issue M16 rifles. Likewise the intended mechanism to bring down the firing rate had been removed from the design again thus bringing the rate of fire back up to a rate of 1,100-1,200 round/min.
The M27 Infantry Automatic Rifle (IAR) is a 5.56mm, select-fire assault rifle, based on the HK416 by Heckler & Koch.It is used by the United States Marine Corps (USMC) and is intended to be issued to all infantry riflemen as well as automatic riflemen.
Rates of fire Both the AK-47 and the M16 are select-fire weapons capable of firing in semi-automatic and full-auto, or semi-auto and 3-round-burst for the later model M16s. However, the semi-auto and 3-round-burst capabilities of the M16A2 and M4 models have less combat capability than their predecessors or AK-47-type rifles. [ 146 ]
Rate of fire: Cyclic: 700–1000 rounds per minute: Muzzle velocity: 2900 ft/s (884 m/s) (M855) [2] Effective firing range: 600 m (656 yd) Feed system: 30 round STANAG M16 box magazine, 100–150 round Beta C-Mag, PMAG D-60 Magazine: Sights: Iron sights or Picatinny rail for various optical sights
It fires a 7.62×51mm NATO cartridge, which offers accuracy, reliability, and stopping power. It fires at a cyclic rate of around 500 to 600 rounds per minute, with an effective distance of 1200 yards (1100 meters). The weapon's controllable, yet lethal, rate of fire allows for accurate firing in the standing, kneeling and prone positions.