Angel Custom V-Teeth Hopup Bucking for WE Airsoft GBB Rifles & Pistols / Marui VSR-10 (Type: Under 370 FPS)

"This product works amazing on a WE PDW, you can see a huge difference in distance and accuracy.

pros:
easy to install
reliable
increase performance

cons:
price

"Bought the soft for my WE Hi-capa and the hard for my upgraded 500 FPS VSR-10. They both worked great and provided significant improve to accuracy and range. Will use again and highly recommended!