M4 to MP5 AEG Adapter

This adapter fits your M4 AEG or MTW and allows you to run CYMA MP5 mid caps.

• A two-part mag release allows for easy mag insertion. 
• A screw on the top of the adapter lets you limit wobble inside the magwell. 

SHIM ADJUSTMENT INSTRUCTIONS

If a CYMA MP5 magazine seems too wide, remove one of the two side wings, marked red on the image below, using a 1.5mm hex key. Some gentle filing of the shims can also be done to improve fitment in the case of CYMA MP5 mags that are stamped too wide.

If a straight MP5 magazine is not feeding or has too much vertical play, install the fitment block inside the magwell, shown in the image below