Mag Coupler for CMMG 33rd MK4 / AR 9mm Mags

- Straps Mags Together: Carry a second mag without holding it or putting it in a mag pouch. If using my flared magwell, choose the Extended version so there is more space between the mags. - Simple Setup: Comes with two printed pieces, a bolt, and a nut. The bolt and nut only fit in one way. The bolt should be on the front, and the nut on the back. put the halves on the mags as pictured, then hold the nut in place with your finger while you tighten the bolt. Ensure the rear notch sits over a ridge on the back of the mag, and the two ridges on the front half of the coupler sit into the grooves on the front of the mags. - PETG-CF Material: Printed out of higher temp-resistant material than standard PLA. - Specific Fit: Designed specifically for compatibility with CMMG 33 round 9mm MK4 / AR15 magazines. Please ensure your mags match the mags in the product photos. - Made in USA: 2000+ products designed and 3D printed in the heart of America in St Louis, Missouri by Hammy3DPrints. MATERIAL: 3D printed using PETG-CF filament. WARRANTY: If this item breaks I will make any design adjustments, if needed, and send a replacement for free. Made in USA. Please note that the products may have slight imperfections as 3D Printing is rarely perfect. The exact product you receive may also slightly vary from the product photos as I iterate and improve upon designs based on user feedback.