New frontier c-4 lower recvr ar15 rifle complete billet blk

FEATURES:
-Accepts any standard Mil-Spec AR-15 magazine
-Precision broached magazine well w/ beveled feed lips
-Includes factory installed Standard Lower Parts Kit, MILSPEC Receiver Extension, & B5 Systems Bravo
SOPMOD Stock Body

Other Features: Complete lower rifle kit with receiver extension and b5 sys bravo sopmod stock body billet aluminum lower receiver large closed trigger guard accepts most aftermarket ar15 milspec parts