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Heckler-Koch HK-416 modular assault rifle / carbine (Germany)
Caliber: 5.56x45mm NATO
Action: Gas operated, rotating bolt
Overall length (stock collapsed/extended): 10" barrel: 686 / 785 mm;14" barrel:
Barrel lengths: 10.5" / 267mm; 14.5" / 368mm; 16.5" /419mm and 20" / 508mm
Weight: 3.31 kg w. 10.5" barrel, 3.5kg w 14.5" barrel
Rate of fire: 700-900 rounds per minute
Magazine capacity: 30 rounds
Following the revision of the OICWBlock 1 / XM8 program, the Heckler & Koch company decided to enter theUS military and law enforcement markets with the alternative design. Based on the experience, gained during successful upgrade program of the British SA80 / L85A1 program, HK decided to cure the existing M16 rifles and M4 carbines from most of their problems, inherent to this 40-years old design.The key improvements, made by HK, are their patented short-stroke gas piston system, borrowed from HK G36 rifle. This system replaced the direct gas system of standard M16 rifle, so no powder residue will remain in the receiver even after long shooting sessions. The "new" gas system also is self-regulating and will work reliably with any barrel length. Other improvements include new buffer assembly, improved bolt, and a cold hammer forged barrel, as well as free-floating hand guard with integral Picatinny-type rails. Originally developed as a "drop-in" upper receiver assembly for any standard M16/M4 type lower receiver, HK-416 is also available as a complete weapon, with HK-made lower receivers.
During the last decade the HK 416 family of rifles gained some momentum and appears to be heading for even more success. Adopted by a number of Special Forces and by Norwegian army, it is also in use by US Marine Corps as M27 IAR and by elite German KSK unit as G38. There also strong rumors that HK 416 might win French trials for a new general issue rifle that should eventually replace aged and worn-off FAMAS rifles.
HK-416 assault rifle is a gas operated, selective fired weapon of modular design. It uses short-stroke gas piston that operates the 7-lug rotating bolt. Receiver is made from high grade aluminium alloy. Combination-type safety / fire selector allows for single shots and full automatic mode. HK-416 retains all M16-style controls, including last round bolt hold-open device, rear-based charging handle and magazine release button on the right side of the magazine well. HK416 is fitted with four Picatinny rails as standard, and may accept any type of sighting devices on STANAG-1913 compliant mounts. It also can accept modified HK AG36/AG-C 40mm grenade launcher, which is clamped directly to bottom rail. Buttstock is of typical M4 design, multi-position telescoped.