Enhanced Recoil Spring is made of high strength spring steel. Its short length design with 2 different tensioned coil zone (140% / 120%) can enhance the efficiency of recoil cycling. Also it can improve the recoil control and make easier handling on blow back cycling. Compatible with Tokyo Marui M&P9 and Glock Series.

Features :
Made from High Strength Spring Steel
Hard Coating Prevents Corrosion
Shorten length with harder coil
Improve cycling efficiency
Cycling enhancement through 2 different tensioned zones (140% / 120%)

Manufacturer : COWCOW