Cyma Airsoft SGR12 Grip Swap Spacer

Common problem with grip swapping the SGR12 is that you end up with a gap between the frame of the gun and the contact point where the inside of the grip would normally touch a V2 gearbox. If you tighten things down anyways, you'll flex and deform the mounting base on the grip.

This fills the gap. It's only 0.6mm. Trim with flush cutters or scissors if needed for your particular grip. I installed an EMG "ETA" grip on my SGR12 and had to trim the sides a little, as those grips are fairly narrow.