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Sig Sauer RM40016BTRDCOIL: The Tread Coil features a ROMEO5 optic with a 2MOA dot with ten illumination settings, Motac, and a 50k battery life; free-float M-LOK 13" Tread handguard, a Tread Matchlite Duo trigger, Tread vertical foregrip, 6-position Magpul SL-K telescoping stock, 3-prong flash hider and ambidextrous controls.This rifle features a 16" barrel with 1:8" twist and a 13" M-LOK free-float handguard. The SIG Sauer M400 Tread 5.56 AR-15 comes equipped with a variety of accessories, including the ROMEO5 Red Dot Sight, 2 MOA dots, and a 2 stage SIG Matchlight match trigger. This Tread Coil AR-15 type rifle has ambidextrous controls and a six-position Magpul SL stock. You will not find a more complete and capable AR15 rifle out of the box anywhere. Perfect for competition, range use, home defense, or hunting..... this rifle has it all.
The Tread Coil sets a new standard in performance and value in the AR category. With installed accessories including ROMEO5 Red Dot Sight 2 Stage Match Trigger and 13" lightweight handguard the Coil is the perfect rifle package for the avid user or first-time buyer. Other features of the Tread Coil include the precision 16" stainless barrel ambidextrous controls and 6-position Magpul SL Stock. - CALIBER: 5.56 NATO - Barrel LENGTH: 16 in (292 mm) - Mags INCLUDED: (1) 30rd Polymer Mag - Mag TYPE: AR-15 - Action TYPE: Semi-Auto - Stock TYPE: Magpul SL-K Telescoping Stock - Barrel MATERIAL: Stainless Steel - Trigger TYPE: SIG Matchlite - Twist RATE: 1:8 - Forend TYPE: Alloy - Grip TYPE: Polymer - Receiver FINISH: Hard Coat Anodized - Overall LENGTH: 30.8 in (782 mm) - Overall WIDTH: 2.5 in (64 mm) - HEIGHT: 7.5 in (191 mm) - THREADS: 1/2 in - 28 tpi - Accessory RAIL: M-LOK - Operating SYSTEM: Direct Impingement - Weight (OZ): 7 lbs (3.2 kg)