Midwest Industries .308 AR Lower Receiver Block

Luth-AR Mark 12 Kit Minus Lower Receiver, W/ Fixed Stock, 5.56Mm, 27In, 18In, Government, Rifle, 1X9, 1/2X28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Black, RKM12-18-1

Guntec USA AR-15 5.56 Upper Receiver W/O Lower Parts kit,n.2,15in Ultralight M-LOK Handguard,MLS Gen 2 Stock Assembly,Carbine ,.750 Gas block,16in 5.56mm M4 4150 Barrel,1-7 Twist, FDE, AR556-KIT-2

Luth-AR Lightweight Kit Minus Lower Receiver, W/ Fixed Stock, 5.56Mm, 26In, 16In, Light Weight, Carbine, 1X9, 1/2X28,Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Black, RKL-16-1

Guntec USA AR-15 Complete 5.56 Upper Receiver W/O Lower Parts Kit, N.5, 15in Ultralight Series M-Lok Handguard, MLS Gen 2 Stock Assembly, Carbine Length, .750 Gas Block, 16in 5.56mm M4 4150 Barrel, 1-

Guntec USA AR-15 Complete 5.56 Upper Receiver W/O Lower Parts Kit, N.6, 15in Air-Lok M-Lok Handguard, MLS Gen 2 Stock Assembly, Carbine Length, .750 Gas Block, 16in 5.56mm M4 4150 Barrel, 1-7 Twist, 1

Wilson Combat Lower Receiver Small Parts Kit, AR-Style, TR-LOWERK

Luth-AR 16 in Light Weight 1-7 Kit Minus Lower Receiver W/Coll. Stock, Keymod, Black, Carbine, RKL7-16-3

Luth-AR Bull Rifle Kit Minus Lower Receiver W/Fixed Stock, .223, 27In, 18In, Bull, Rifle, 1X9, 1/2X28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Silver/ Black, RKB-18-1

Guntec USA AR-15 Complete 5.56 Upper Receiver W/O Lower Parts Kit, N.1, 15in Ultralight M-Lok Handguard, MLS Gen 2 Stock Assembly, Carbine Length, .750 Gas Block, 16in 5.56mm M4 4150 Barrel, 1-7 Twist