Wilson Combat Small Parts Lower Receiver Kit, AR-10 Billet, TR-LOWERK-10

Luth-AR Bull Rifle Kit Minus Lower Receiver W/Fixed Stock, .223, 31In, 24In, Bull, Rifle, 1X9, 1/2X28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Silver/ Black, RKB-24-1

Luth-AR Mark 12 Kit Minus Lower Receiver, W/ Collapsible Stock, 5.56Mm, 27In, 18In, Government, Rifle, 1X9, 1/2X28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Black, RKM12-18-3

Luth-AR 18 in Bull Rifle Kit Minus Lower Receiver W/Fixed Stock, M-Lok, Black, Rifle, rkb-18-1m

Luth-AR Bull Rifle Kit Minus Lower Receiver W/Fixed Stock, .223, 26In, 16In, Bull, Carbine, 1X9, 1/2X28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Silver/ Black, RKB-16-1

KE Arms 223 Rem/556NATO Lower Receiver Parts Kit, Black, KEA1-50-01-543

Luth-AR 16 in Light Weight Kit Minus Lower Receiver W/Coll. Stock, M-Lok, Black, Carbine, rkl-16-3m

Luth-AR Bull Rifle Kit Minus Lower Receiver W/Fixed Stock, .223, 29In, 20In, Bull, Rifle, 1X9, 1/2X28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Silver/ Black, RKB-20-1

Luth-AR 18 in Bull Rifle Kit Minus Lower Receiver W/Coll. Stock, M-Lok, Black, Carbine, rkb-18-3m