FPS Airsoft Gearbox Ergal Bearing Spring Guide Marui V2 M4 SRE

FPS Airsoft Gearbox Ergal Bearing Spring Guide Marui M-4 SRE

Ergal bearing spring guide for new generation MARUI M-4 SRE gear box (GM4S).

The shape of the rod makes it compatible with most springs on the market today.

The ergal rod is hard anodized 40 to ensure high performance and long life.

Increase the speed of the cue ball by 2/3 meters per second.

100% Made In Italy

Same Day Dispatch On All Orders Placed Before 3pm Monday – Friday

For Airsoft Use Only, cannot be Adapted or Modified for any other purpose