This AR15 Complete Upper features a 10.5′” 5.56 Carbine Barrel with Pinned FSB and Magpul MOE M-LOK SL Carbine Handguard.
Aero Precision AR15 Complete Upper, 223 Remington/556NATO, 10.5″ Barrel, 1:7 Twist, A2 Front Sight Block, Carbine Gas System, Magpul MOE Handguard, Anodized Finish, Black, Does Not Include BCG or Charging Handle APAR502505M3