SIG M400

SIG Sauer M400
Type Carbine
Semi-automatic rifle
Place of origin Germany
United States
Service history
In service 2010–present
Production history
Designed 2000s
Manufacturer SIG Sauer
Produced 2010 - present
Variants Classic
Hunter Black
Enhanced
Enhanced FDE
Enhanced OD Green
SRP
SWAT
Predator
Varminter
Specifications
Weight 7.6 lbs
Barrel length 16-22 inches
Cartridge 5.56×45mm NATO (.223 Rem.)
Action Direct gas impingement system, rotating bolt
Feed system AR compatible magazine

The SIG M400 is a family of firearms manufactured by SIG SAUER. The rifle is based on the earlier 5.56×45mm AR-15, M16, and M4.

Design details

Operating mechanism

The SIG M400 is a semi-automatic firearm/rifle, intended for civilian and law enforcement markets. It fires from a closed bolt and uses a direct gas impingement system.

Features

Ergonomically, the SIG M400 is patterned after the AR-15-type rifle. It has a safety lever on the left side, to be used by the thumb of the shooting hand. Some newer models have an ambidextrous safety selector. The front gas block is railed to accept the front sight with a flip-up sight post. Most M400 models are equipped with an M16-A2 style bird-cage flash hider.

All models accept AR-15-style box magazines. These magazines are constructed in 5, 10, 20, 30, 40, 60, and 100 round variants. The later two are available from Surefire. The rifle is hammer-fired with a single-stage trigger in most models. Some models include a two-stage trigger from the factory.

The M400 has a telescoping skeletonized buttstock. The ACE-style stock moves forward and rearward in 6 positions. A spring-loaded release underneath the buffer tube area locks into each position.

See also

References

    This article is issued from Wikipedia - version of the 3/18/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.