CowCow Hi-CAPA Guide Rod Black

Stainless Steel material with CNC machined
Drop-in 2nd spring and additional spring housing design
3 different weight of springs for precise calibration
Combine with primary spring to soften recoil
Enhance the reaction force to speed up the blowback cycle
For Marui Hi-CAPA
Please use with CowCow 140% recoil spring for best performance (sold separately).