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16" Chrome-Lined Barrel
Hard-Coat Anodized Receiver
Direct-Impingement Gas System
Magpul Furniture w/ Telescoping Buttstock
A2 Post/Flip-Adjustable Sights
The SIG M400 is a true AR-platform tactical rifle, designed for use in law-enforcement, military operations, or the sporting field, as well as in competitive shooting. A 16" chrome-lined and phosphate coated barrel provides superior corrosion resistance, and a 7075-T6 aircraft grade aluminum forged lower receiver adds to the durability and reliability that users come to expect from SIG Sauer. The M400's dependable direct-impingement gas operating system uses a rotating locking bolt. The Enhanced version of the M400 is designed for use in law-enforcement, military operations, and the sporting field, as well as competitive shooting. Features include a hard-coat anodized upper and lower, Magpul furniture, A2 front and flip-up rear sights, ambidextrous quick detatch sling mounts, and a collapsible stock. Olive drab finish. 30-round magazine.