The M400 TREAD is easily customizable with a full line of purpose-built accessories, designed and built in the USA. The TREAD is an aluminum frame rifle, that is optics ready, TREAD features a 16 stainless steel barrel with a free-floating M-LOK hand-guard, a single-stage polished hard-coat trigger, ambidextrous controls, a Magpul SL-K 6 position telescoping stock and a mid-length gas system. This model is Colorado compliant.

Sig Sauer RM40016BTRDCO M400 Tread *CO Compliant 5.56x45mm NATO Caliber with 16" Barrel, 10+1 Capacity, Black Hard Coat Anodized Metal Finish, Black Adjustable Telescopic Stock & Black Polymer Grip Ambidextrous Hand

Caliber: 5.56x45mm NATO
Barrel Length: 16"
Capacity: 10+1
Action: Semi-Auto
OAL: 30.80"
Barrel Finish: Black
Muzzle: Three Chamber Compensator
Twist: 1:8"
Handguards: M-LOK Free-Float
Receiver Material: Aluminum
Barrel Description: Stainless Steel Ported
Barrel Length: 16"
Max Capacity: 10
Receiver Finish: Black Hard Coat Anodized
Trigger: Single-Stage
Weight: 7 lbs