Centurion Arms - CM4 5.56 Forged Lower Receiver
** Please contact your FFL for transfer, and have them send a copy of their FFL to HK@HKARMCO.COM , and please have them reference your name/order number.
Centurion Arms LLC, C4 5.56 Forged Lower Receiver 7075-T6 Aircraft Grade Aluminum
Receivers Machined from Aluminum Forgings 7075-T6
Receivers Hardcoat Anodized per MIL-A-8625F, Type III, Class 2
FFL Required Before Shipping.