






M4 to MP5 AEG Adapter
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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

Compact MP5
Compact MP5 HPA Adapter Info
- This magwell sits hidden inside your guns magwell for a sleek aesthetic. It cannot be damaged by BB strikes.
- A two part magazine catch moves inline with the magazine catch cutout on the CYMA MP5 magazine for ultimate fitment
- Compatible with all CYMA MP5 Mid Caps (65 round metal, 120/130 round metal, Straight, Novritsch Straight, Bullet Window). Available Here
- BB Retention drops only 2 BBs when changing magazine
If a CYMA MP5 magazine seems too wide, remove one of the two side wings, 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 red, in the image below

