Lowers

FN

FN FN15 M4 Lower Receiver - Black Anodized, Caliber 223 Rem / 5.56 NATO

FN

FN 20-100466 FN15 Stripped Lower Receiver in Black Anodized Finish

FN

FN15 M16 Lower Receiver by FN - Black Anodized, 223 Rem | 5.56 NATO

Black Rain Ordnance

Black Rain BROSPEC15LR Spec15 Forged Lower Receiver for AR-Platform - Multi-Caliber, Black Anodized Aluminum

LaRue Tactical

LaRue Tactical LT15X01BLK AR-15 Stripped Lower Receiver

Primary Weapons Systems

Primary Weapons MK1-M2-LWR MK1 Mod 2-M Black Anodized Stripped Lower for AR-15

DPMS Panther Arms

DPMS Panther Arms DPDA151000 DP-15 Stripped Lower Receiver for Multi-Caliber Builds

Black Rain Ordnance

Black Rain Ordnance BROMLRBLK AR-15 Milled Lower Receiver in Black Anodized Aluminum

Franklin Armory

Franklin Armory Libertas Strip Billet Lower Receiver (Part #0020003BLK)

Griffin Armament

Griffin Armament MK2AL MK2 Stripped AR-15 Lower Receiver - Black Anodized 7075-T6 Aluminum

FN

FN 20100466 FN-15 Stripped Lower Receiver with Hard Anodized Finish

FN

FN 20100821 FN15 Military Collector M4 Lower Receiver