Lancer MPX X-Cinch Magazine Coupler Black Polymer

The Lancer MPX X-Cinch Magazine Coupler is a precision magazine coupling accessory engineered specifically for the SIG MPX platform. Designed to join two factory SIG MPX magazines together, the X-Cinch speeds up reloads and effectively increases on-gun round count during high-volume or tactical use.

Constructed from durable polymer and finished in black, the X-Cinch uses a dedicated clamping system that locks into the molded ribs of SIG MPX magazines for a secure, rattle-free fit. The open design preserves a clear view of the magazines while the locking ribs mate with the magazine texture to keep the assembly aligned during reloads.

The X-Cinch fits 10-round, 20-round, and 30-round SIG MPX factory magazines and installs tool-free. At approximately 1.6 ounces, it adds minimal weight to your rifle. Proudly made in the USA by Lancer, the MPX X-Cinch is a straightforward upgrade for any SIG MPX owner looking to cut reload times and carry paired mags as a single unit.