BRT 11.5 OPTIMUM Upper Receiver Group
Barrel: BRT OPTIMUM 11.5" HF CL or BRT OPTIMUM 11.5" SR CL
Gas System: CAR Length, Optimized for 11.5"
Hand Guard: 10.5" or 10.7" M-LOK rail.
Upper: Forged from 7075 USGI M4 Upper w/ dry film lube.
Upper is test fired before shipping.
NFA Rules Apply
100% made is USA.
