Mag Coupler for MP5 9mm Metal Mags battle Tested with curved BX-15 mags

Tested with curved BX-15 mags and should also work with the standard rotary mags

DISCLAIMER: This product is not manufactured

- Perfect Fit: Works with a CZ 457 22LR rifle

- Made in USA: 2000+ products designed and 3D printed in the heart of America in St Louis

Also fits AR15 223/5

Mag Coupler for MP5 9mm Metal Mags battle Tested with curved BX-15 magsFlared magwells for MP5s can be found here A coupler for Overwatch Precision MOD2 MP5 mags is here A coupler for AC Unity 40 round mags is here Straps Mags Together: Carry a second mag without holding it or putting it in a mag pouch. These couplers hold the mags far enough apart to accommodate my flared magwells. Tight Clamping: Sturdy design that wraps fully around mags lets you crank on the bolt and nut to tightly clamp the mags for no slippage.