Description
Replacement springs - select your spring from the drop down menu.
Available:
Checkmate QD Spring
9mm/10mm 3-lug spring
Booster Piston Spring
My CGS 9mm cans were having oddly sharp recoil. Felt like I was shooting .40. Grabbed a pair of these, and while installing, I noticed that they were longer (free length). The problem went away.
Its a piston spring..... Lost my original. Worked great on a Silencerco piston.