Description
The CMMG 5-Slot KeyMod Accessory Rail is a lightweight mounting adapter that converts a section of any standard KeyMod free-float handguard into 5 slots of 1913 Picatinny rail, giving you a familiar and stable mounting surface for lights, lasers, vertical grips, bipods, and other Picatinny-spec accessories on a KeyMod-equipped rifle.
Machined from 6061-T6 aluminum and finished in a low-glare black coating, the rail measures 1.05″ high x 3.80″ wide x 7.00″ long and bolts directly to the KeyMod keyhole pattern on your handguard using the included mounting hardware. It is purpose-built for AR-15 platforms running KeyMod handguards and provides a rigid, repeatable return-to-zero mounting point for non-KeyMod accessories that require a Picatinny interface.
CMMG part number 55DA299. This is a new-production accessory from CMMG, ideal for shooters looking to expand the accessory compatibility of a KeyMod handguard without replacing the entire furniture.









