STB 556
Rear Grip
Bruen Q900 Grip
Muzzle
RF Crown 50
Underbarrel
FSS Sharkfin 90
Comb
FTAC C11 Riser
Stock
Bruen MX9 Stock
The STB 556 is a closed-bolt rifle built around modularity and accuracy, ideal for mid to long-range fights.
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