The Armaspec ARCA Rail (Armaspec part no. ARM621-3) gives M-LOK handguard owners a quick way to add ARCA-Swiss compatible mounting to their rifle, letting the gun attach directly to ARCA-pattern tripod heads, clamps, and rests without an adapter. Finished in black and measuring 3 inches, this rail integrates directly with M-LOK handguard slots, keeping the profile low and the attachment solid without any gunsmithing required. It’s a simple, effective upgrade for PRS-style competitors and precision shooters who mount their rifle to a tripod for supported positions.

Key Specifications

• Integrates directly with M-LOK handguard slots for a solid, tool-friendly attachment.
• Adds ARCA-Swiss compatible mounting for tripods, clamps, and rests.
• 3 inch rail length keeps the attachment compact on the handguard.
• Finished in black to match most modern rifle builds.
• No gunsmithing required for installation on a compatible M-LOK handguard.

Frequently Asked Questions

What handguard system does this rail fit? M-LOK handguards, where it integrates directly into the slot system.

What mounting standard does it add? ARCA-Swiss compatible mounting for tripods, clamps, and rests.

What length is this rail? 3 inches.

Buy the Armaspec 3in ARCA Rail

For PRS-style shooters who mount their rifle to a tripod, this Armaspec ARCA rail adds tool-free compatibility to any M-LOK handguard. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and browse more from Armaspec in our rifle accessories collection.