Apex HD Upper Receiver
ApexHD(tm) Rifle series beating heart.
Each upper receivers assembled using American made Materials, assembled in the State of Texas.
Parts break down as follows:
- South Texas Arms billet Upper Receiver - 7075T6 aluminum
- South Texas Arms nitride treated steel gas block (optional adjustable gas block)
- South Texas Arms stainless steel gas tube and roll pin
- Your choice of Standard A2 flashhider, or suppressor mount (additional charge).
- Nitride Treated bolt carrier group
- Radian(R) branded Charging Handle
- Nitride treated 4150CM 16" barrel, in 5.56, 300blk
- Griffin Armament RIGID 15" rail - Mlok
- Griffin Armament BUIS included