The GrovTec Picatinny M-Lok Rail (brand part number GTSW239) is a 6-inch-class, 15-slot M-LOK rail section finished in Black hard anodize, built to add a MIL-STD 1913 Picatinny mounting surface to any M-LOK-compatible hand guard. GrovTec precision CNC machines the rail from solid, lightweight aluminum rather than casting or stamping it, holding tighter tolerances for a secure, wobble-free lock-up on the hand guard’s M-LOK slots. Once installed, the Picatinny pattern lets shooters mount lasers, sights, scopes, or any other Picatinny-footprint accessory in exactly the position they need. It’s a straightforward way to add rail real estate to an M-LOK hand guard without switching to a full-length rail system.

Key Specifications

• Precision CNC machined from solid aluminum for tight tolerances and a secure M-LOK lock-up.
• Finished in Type III Black Hard Anodize for wear and corrosion resistance.
• Cut to the MIL-STD 1913 Picatinny rail pattern, compatible with standard Picatinny accessories.
• Features 15 rail slots for mounting lasers, sights, scopes, or other accessories.
• Sized as a 6-inch-class rail, measuring 7.8 inches in overall length.
• Weighs approximately 0.165 pounds.
• Classified as a Picatinny rail accessory section, not a full hand guard.
• Provides a mounting surface for lasers, sights, scopes, and other Picatinny accessories.
• Attaches directly to M-LOK-compatible hand guard slots.

Frequently Asked Questions

What can I mount on this rail? Any Picatinny-footprint accessory, including lasers, sights, scopes, lights, and grips.

How many M-LOK slots does it use? 15 slots’ worth of hand guard real estate.

Is this rail cast or machined? It’s precision CNC machined from solid aluminum, not cast, for tighter tolerances.

Buy the GrovTec 6-Inch 15-Slot M-LOK Picatinny Rail Section – Black

Add a true Picatinny mounting surface to your M-LOK hand guard exactly where you need it. Order it from our GrovTec lineup, part of our gun accessories and parts selection, at our Lubbock, Texas gun shop for fast, direct shipping.