mce digital armory sig sauer mpx fits magazine pouch eamp challenger - magp0177 mce digital armory magp0177- eamp challenger - sig sauer mpx magazine pouch default belt size: 1 5/8” x 1/4” belts*** buy multiples to daisy chain them together or see our other pre-configured models. please note that no gun or magazine is included in the purchase. they are simply used for scale and demonstrative purposes in the product pictures. *** belt adapters for 2” x 5/16”, 2 1/4” x 5/16 & molle are switchable upon request.*** ................................................... patent pending modular design. eamp = expandable articulating magazine pouch expandable... add or remove pouches as you desire articulating... it pivots and flexes to match your belt line perfectly magazine pouch... includes manual retention along the back edge so you can adjust each individual magazine slot as you prefer. engineered and 3d printed in usa from temperature resistant z-abs plastic. refined design includes a 10 degree deviation between the belt face and magazines to aid in smooth and rapid retrieval and a manual retention device to customize to your preference. ***belt adapter for 1 5/8” x 1/4” belts is included by default but 2” x 5/16”, 2 1/4” x 5/16” or molle adaptors available by request.*** no velcro to wear out from repeated use, made in the usa and designed specifically for your gun/magazine. guaranteed not to split, break or fail. us pat. 9,448,050 and other patents pending.