CowCow RS1 Recoil Spring Polarstar Conversion kit designed for your pistol

designed for your pistol

Now's your chance to add a few more rails for more attachments to spice up the ACR

Adjustments include: Weight

Developed as a direct drop in OEM gearbox case replacement for JinMing Gen 9 and ACR J10 gel blasters

Stainless Steel Hammer Strut For TM Hi-capa/1911 – Fully CNC with 303 stainless steel construction and titanium coating

CowCow RS1 Recoil Spring Polarstar Conversion kit designed for your pistolCowCow RS1 Recoil Spring RS1 Recoil Spring is made of high strength spring steel. Its short length design with 2 different tensioned coil zone can enhance the efficiency of recoil cycling. Also it can improve the recoil control and make easier handling on blow back cycling. Highlighted features Made from High Strength Spring Steel Hard Coating Prevents Corrosion Provide 120% 140% power on different tension zone Shorten length with harder coil Improve