*30% less weight with V2 split rail than regular MLOK
This AR-15 Complete .338 Arc Bolt Action Style rifle length upper has a 10.5" heavy barrel with a parkerized finish and features a 1:8 twist rate. It includes the V2 10" MLOK split rail, an M4 flat-top 7075 billet aluminum upper receiver, a bolt carrier group, a flash hider, and a right-side bolt action style charger. This .338 arc upper is compatible with any mil-spec AR-15 lower.