SAA 16" 5.56 NATO M4 1:9 Carbine Budget Series4 FF Complete AR-15 Upper Receiver

SAA AR-15/M16 Nickel Boron Bolt Carrier with Staked Gas Key

SAA 16" 5.56 1:7 SS Match M4, Carbine YHM FF Tube Complete AR-15 Upper Receiver

SAA 16" 5.56 1:8 M4 BHW 416 SS Blackened, YHM FF Tube Complete AR-15 Upper Receiver

SAA 16" 5.56 NATO Carbine YHM KR7 Keymod FF Complete AR-15 Upper Receiver

SAA 16" 5.56 NATO SOCOM 1:7, Mid YHM Keymod FF Complete AR-15 Billet Upper Receiver

SAA 16" 5.56 1:7 M4, YHM KR7-Rifle Keymod FF Complete AR-15 Upper Receiver

SAA 16" 5.56 M4 1:7 Nitride, YHM-5005 Rifle Smooth FF Complete AR-15 Upper Receiver

SAA 16" 5.56 1:7, TROY ALPHA 11" FF Rail Complete AR-15 Upper Receiver

SAA 16" 5.56 NATO Carbine YHM MR7 MLOK FF Complete AR-15 Billet Upper Receiver

SAA - Billet LR-308 Low Profile DPMS Style Upper Receiver Assembled - T-Marked

+FreeSHIP! SAA AR-15/M16 - BCG MPI -NITRIDE+NiB- FrankenBolt-V4 - .223/5.56/300AAC