Airsoft Masterpiece Steel Guide Rod for Hi-CAPA 5.1 ...
CowCow RM1 Stainless Steel Guide Rod For Hi-Capa 4.3 & 5.1 (Rainbow)Stainless Steel material with CNC machinedDrop-in 2nd spring and additional spring housing design3 different wright of recoil springs for precise calibration Combine with primary spring to soften recoilEnhanced the reaction force to speed up to blo
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