BLACK RIFLE ARMS
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$0 - $24.99
$25 - $49.99
Over $50
7.62x39 Low Profile Piston Upper with 12 7.62x39 Low Profile Piston Upper with 12" Keymod Rail and Troy BattleSights
$1,132.99
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5.56x45 Low Profile Piston Upper with 12" Keymod Rail and Troy BattleSights
$1,052.99
5.45x39 Spartan Piston MOE Upper
$769.99

BLACK RIFLE ARMS PATENTED GAS PISTON SYSTEMS

C.A.P.S. is our Combat Adaptive Piston System. C.A.P.S. is a 4 position rapid adjustment 

piston system which requires no tool or detent pin to adjust gas regulator.