Carbine Buffer Action Spring | Enhanced USA (AS-1219235)
Optimized for suppressed setups, Features a precision center-less ground and polished operating spring for smoother and quieter operation in the buffer tube. Enhanced with a softer impulse feel resulting in faster sight recovery and improved reliability. Designed for rapid fire target acquisition, H1-2 Buffers with adjustable gas blocks recommended for maximized performance of this match grade action spring!
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i bought this because it is polished and minimizes friction and sound in the buffer system.. it works well i noticed a softer operation on my ar pistol when i swapped this spring out A+