FITS POLYMER LOWER

The CSM EGM is for the new Glock lowers for the APC9 guns. This was designed specifically for the Glock lower. It aids in stress loading of your firearm. 

No tools or alterations needed. This item is designed to slip on and stay on. It can be taken on and off with no difference. Removal is just a hard (really hard) pull. 

Compatible:

• APC9/GHM9 GLOCK Lower
• APC9 Pro Lower (The retention on this is less than the Glock however testing has shown it to stay in place) 

WILL NOT WORK WITH NON GLOCK GHM9 or regular APC9 as it will interfere with the BOLT HOLD OPEN BUTTON!