Sig Sauer MCX Upper 11.5" Barrel Upper Assembly, 5.56 NATO, Tapered Lug, MLOK. Available in 5.56 NATO, This item includes: a Sig Sauer MCX upper assembly, 90 degree muzzle adapter for standard non Sig Sauer suppressors, and a MCX owner’s manual. The kit features a 11.5" barrel with a thread pitch of 5/8" x 24 TPI.
The MCX Virtus upper receiver assembly features a standard free-floating M-LOK handguard with a top picatinny rail for sight and optic, as well as a short-stroke piston system and unique internal recoil system that eliminate the M4-style buffer tube resulting in a light-recoiling and compact platform able to be configured for any task.
- Barrel Length: 11-1/2"
- Barrel Thread Pitch: 5/8" x 24 TPI
- Brand: Sig Sauer
- Caliber: 5.56x45mm
- Finish / Color: Black
- Firearm Type: Pistol,Rifle
- Material: Steel,Aluminum
- Models Fit: AR-15,SIG516,M400