MDT Sporting Goods M-LOK Spare Round Holder Black Polymer - Multi-Caliber, Holds 2 Rounds

The MDT Sporting Goods M-LOK Spare Round Holder is a low-profile, multi-caliber carrier designed to keep a pair of spare rounds immediately accessible on any M-LOK compatible handguard or forend. Built from a tough black polymer, it integrates cleanly into a rifle setup without adding snag points or excess weight.

Each holder ships with both a small-caliber and a large-caliber polymer body, along with an adjustable spacer system using Mil Spec washers and O-Rings to securely grip cartridges across a wide range of chamberings. Listed caliber compatibility includes .223 Remington, .300 AAC Blackout, .224 Valkyrie, 7.62x39, 6.5 Grendel, and .308 Winchester, making it a versatile choice for AR-pattern rifles, the MDT ACC chassis family, and other M-LOK equipped platforms.

Mounting is handled via the integrated M-LOK interface, allowing the holder to attach anywhere along an M-LOK slot for user-preferred positioning. The package holds 2 rounds at a time and is supplied as new production hardware ready for installation.