2A ARMAMENT PALOUSE-LITE Builder Series Multi-Caliber AR15 Stripped Lower Receiver - Black

Timber Creek Outdoors AR Lower Parts Kit for AR-15, Robin's Egg Blue - AR LPK RE

Timber Creek Greyman Complete AR-15 Build Kit Black - G LPK BL

GUNTEC AR15 SLABSIDE STRIPPED BILLET UPPER RECEIVER BLACK

AERO PRECISION AR15 5.56 NATO / 223 Rem 20" Complete Upper Receiver w/ Carry Handle | Black

Timber Creek Outdoors AR15 Lower Parts Kit - Burnt Bronze

AERO PRECISION M4E1 Stripped Lower Receiver | Kodiak Brown Anodized

BATTLE ARMS Authority ELite Upper Recv 5.56 10.5" AR-15 Gray