Indroducing Tread Coil SIG M400

U.S. Precision Defense

Outfitted for performance, right out of the box. The new TREAD COIL is fully equipped with some of the most popular TREAD accessories.

A new standard of performance and value in the AR market, the TREAD COIL gives you everything you need including a ROMEO5 TREAD red dot optic, Matchlite Duo trigger, and a lightweight performance 13” handguard. The TREAD COIL is the perfect package for the first time buyer or the avid shooter.

DETAILS

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.

SKU                               RM400-16B-TRD-COIL
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)

 Additional TREAD branded accessories include:

- M-LOK handguard with lightening cuts to reduce weight, available in 13” and 15” lengths;

- 3 chamber compensator;

- Ambidextrous charging handle made of aircraft grade aluminum and a dual roll pin design;

- ROMEO5 optic featuring a 2MOA dot with ten illumination settings, MOTAC, and 50k battery life;

- Flip-up front and rear iron sights that are easy to install, adjustable, and deploy quickly;

- M-LOK front sight adapter with co-witness height made of lightweight aluminum;

- Multiple configurations of M-LOK grip kits made of high strength polymer;

- Factory upgraded flat blade, single stage trigger.