AR15 9mm/.40 /.45 /5.56 /.308 Lower receivers.

Aero Precision

Aero Precision M4E1 Stripped Lower Receiver - Anodized Black

Quarter Circle 10 GSF lower receiver.

New Frontier Armory

New Frontier Armory C-9 Stripped Billet Lower Receiver — Glock Mags

New Frontier Armory

C-9 Billet Lower (Blem)

New Frontier Armory

New Frontier Armory C-5 Stripped Billet Lower Receiver — MP 5 Mags

New Frontier Armory

New Frontier Armory C-45 Stripped Billet Lower Receiver — Glock Mags

Aero Precision

Aero Precision AR15 Stripped Lower Receiver, Gen 2 - Anodized Black

Aero Precision

Aero Precision M5 (.308) Stripped Lower Receiver, Anodized Black