Bootleg Lower 5.56x45mm AR Lower, Black - BPLR1

Odin Works OTR-15 .223 Remington AR Lower, Black - OTR15BilletLowerBLK

BLEM BCM Complete AR Rifle Lower Receiver w/ Mod-1 SOPMOD Stock, Black

White Label Armory Forged Stripped AR-15 Lower Receiver

BLEM Griffin Armament MK2 Ambi AR-15 Lower Receiver, Terra Brown

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

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

AERO PRECISION M4E1-T 5.56 NATO 11.5" Complete Upper Receiver | Black