CMMG 5-Slot M-LOK Accessory Rail Kit

The CMMG 5-Slot M-LOK Accessory Rail Kit gives you a straightforward way to mount standard Picatinny accessories on M-LOK handguard systems. If your modern tactical rifle or AR has an M-LOK rail, this adapter lets you install optics, lights, lasers, or foregrips that use the 1913 Picatinny standard—so you're not locked into M-LOK-only gear. It's the kind of practical solution that shows up on working guns at the range and in the field.

M-LOK has become the go-to attachment system for mid-range and precision rifles, but the vast majority of quality tactical accessories still use Picatinny rail. This kit bridges that gap without adding bulk or requiring permanent modifications. Five slots give you real estate to mount multiple devices or position a single accessory where it works best for your setup—whether that's a bipod forward of center, a light in back, or anything in between.

Installation is straightforward: the included hardware handles the connection between your M-LOK handguard and the rail. It's the kind of detail CMMG handles well—no guesswork, no missing bolts, just a functional piece of kit that works out of the box.

Key Features

• 5-slot Picatinny rail for mounting standard tactical accessories
• M-LOK attachment system for compatibility with modern handguards
• All necessary mounting hardware included
• Enables use of 1913 Picatinny-standard devices on M-LOK platforms

Specifications

Frequently Asked Questions

Will this work on my M-LOK handguard?

Yes, the CMMG 5-Slot Rail Kit is designed to attach to standard M-LOK handguard systems. If your handguard has M-LOK slots, this rail will mount directly.

What kind of accessories can I mount?

Any accessory designed for 1913 Picatinny rails—lights, lasers, optics, bipods, vertical grips, and more. This kit converts your M-LOK slots to standard Picatinny rail space, opening up the full range of rail-mounted gear.

Is everything I need to install it included?

Yes, all necessary mounting hardware is included with the kit.

How many accessories can I mount?

The rail has 5 Picatinny slots. How many accessories you mount depends on their size and your intended setup—one device might use multiple slots, or you could spread several smaller accessories across the rail.