18" SPR Mk 12 Upper Half

18" SPR Mk 12 Upper Half

BCM SPR Mk12 Upper Group Features
18" BCM SS410™ Barrel
Rifle Length Gas System
Taper Pinned Low Profile Gas Block or Fold Front Sight Base
Rifle Length Handguards or Extended Rifle Length Handguards
BCM BCG with fitted HPT/MPI Bolt
Choice of Charging Handle
Choice of Muzzle Device