The SIG TREAD and the M400 is easily customizable direct impingement systems designed and built in the USA with the most sought-after features for today’s semi automatic hunting AR rifles.

Sig Sauer M400 Tread V2 5.56mm AR-15 Rifle with 2-Stage Match Trigger and M-LOK Handguard

Browse the selection of options & features with SIG SAUER's collection of M400 and SIG M400 TREAD variants; direct impingement operating system, AR 15 platform.

Sig Sauer AR-15 rifles for sale online or in-store at Sportsman's Warehouse. Shop a full selection of AR-15 rifles manufactured by Sig Sauer.

Extensive selection of customizable SIG SAUER rifles & pistol configurations for precision hunting, defense, competitive shooting and tactical maneuverability.

Tough enough for any situation, SIG offers a multitude of unique operating systems, stock options, barrel lengths, and ambidextrous controls. With no shortage of rifle systems, find the SIG SAUER rifle that is right for you.

Also in AR-15: Upper Parts; Lower Parts; Complete Kits; Lower Build Kits & Parts Kits; Pistol Kits; Rifle Kits; Bolt Carrier Groups; Magazines; 300 Blackout; Meme Lowers; Shop all AR-15 . AR-10. Complete Rifles ... SIG Sauer M400. View as Grid View List View. 12 Items . Filter.

Sig Sauer M400 Tread AR-15 5.56 NATO/.223 Rem 16" Barrel, 30+1 Rounds - $849.99 + Free Shipping

Mar 2, 2019 · The Sig Sauer M400 Tread AR-15 is a great mid-level rifle that packs an upgraded handguard and pistol grip. The mil-spec trigger is decent and since it’s an AR there’s limitless further upgrade potentials. Reliability has been great …

Shop SIG Sauer AR 15 Rifles For Sale including the M400 TREAD and the AR style MCX Virtus rifles. Including stocks, braces, uppers, and accessories.