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