Description
SIG Sauer M400 TREAD V2 5.56 NATO Rifle, Concrete Cerakote, 16-Inch
The SIG M400 TREAD V2 Concrete is SIG’s no-compromise AR in Concrete Cerakote: a 16 in. stainless barrel, mid-length gas, Matchlite Duo, and a TREAD-engraved free-float M-LOK handguard.
TREAD V2 is SIG’s no-compromise AR. A 16 in. stainless barrel, mid-length gas, and a Matchlite Duo two-stage sit under a TREAD-engraved free-float M-LOK handguard. SIG built V2 from shooter feedback: more handguard, a cleaner trigger, Magpul’s SL-K stock. The lower is ambidextrous on the safety and magazine release, with QD cups on the receiver.
The stainless barrel is 1:8 twist with SIG’s 3-prong flash hider on a 1/2-28 tapered shoulder. Mid-length gas is the V2 default. Magpul’s SL-K stock is six-position. The rifle is 6.5 lb, 35.8 in. extended and 32.5 in. collapsed. Width is 2.6 in. Height is 7.1 in.
This Concrete TREAD V2
Concrete Cerakote is the finish SIG lists alongside black anodized and moss green. Stainless 16 in. barrel, 3-prong flash hider, Magpul SL-K, one 30-round magazine. A factory red dot is not installed. This is not the Coil package and not the FORGE Concrete rifle.
What ships
Color is the difference from the black TREAD V2. This is a serialized 5.56 rifle and ships to a licensed FFL. See the SIG M400 collection.
Specifications and Included Items
- Model: RM400-16B-TRD-V2CON
- Caliber: 5.56 NATO
- Barrel: 16 in. stainless steel, 1:8 twist, 1/2-28 tapered shoulder
- Muzzle: SIG 3-prong flash hider
- Operating system: Mid-length direct impingement
- Trigger: SIG 2-stage Matchlite Duo, flat
- Controls: Ambidextrous safety and magazine release; lower-receiver QD mounts
- Handguard: TREAD-engraved enhanced free-float M-LOK
- Stock: 6-position Magpul SL-K
- Finish: Concrete Cerakote
- Overall length: 35.75 in. extended, 32.5 in. collapsed
- Weight: 6.5 lb
- Optic: Optics-ready; a factory red dot is not installed
- Magazine included: One 30-round polymer AR-15 magazine
- FFL: Rifle; ships to a licensed FFL dealer







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