PSA 16" 5.56 NATO 1:7 Mid-length Nitride 13.5" Lightweight M-Lok MOE 2-Stage Precision Rifle Kit w/ MBUS Sight Set

Barrel: 16" 4150V Chrome Moly Vanadium steel barrel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a Mid-length gas system. The barrel is finished with a .750" diameter low-profile gas block, PSA 13.5" Lightweight M-Lok Free Float Rail and an A2 flash hider.Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feed ramp cuts, these upper receivers are made for us right here in the USA.Bolt Carrier Group: For AR15 and M16 rifles and carbines. Bolt is made of shot-peened, Mil-spec Carpenter 158A(R) steel. Gas key is secured with grade 8 fasteners and staked. Includes Charging Handle.Lower Build Kit: PSA MOE 2-Stage Lower Build Kit, Black2-Stage Nickel Boron Trigger Assembly: Platform: AR-15/AR-10Finish: Nickel BoronType: 2-StageFirst Stage Weight: 2.0lbsSecond Stage Weight: 2.5lbsTotal Pull Weight: 4.5lbsAdjustable: NoTrigger Type: M4 CurvedIncludes: Magpul MBUS Sight Set, Black