TacFire MAR133G2 Gen 2 Handstop 1-Slot Black Aluminum for M-Lok Rail

The TacFire MAR133G2 Gen 2 handstop is a compact, no-nonsense grip control solution for modern tactical and hunting rifles built on M-Lok rail systems. If you run an AR platform with M-Lok slots—whether you're setting up a precision rifle, a patrol gun, or a hunting build—a handstop gives you a positive reference point for your support hand, improving control and reducing fatigue during extended shooting. This aluminum handstop mounts directly to your M-Lok rail with a single attachment point, giving you a streamlined profile without the bulk of a full handguard.

The Gen 2 design refines an already proven platform. One-slot M-Lok compatibility means it works with any M-Lok-equipped rail system, from free-floating hunting barrels to tactical handguards. Black anodized aluminum keeps weight minimal and offers solid durability for field use. The handstop ships complete with mounting hardware—you just need a hex wrench and a moment of setup time.

This is a practical upgrade for shooters who want better hand positioning without overhauling their entire rifle. Works equally well on a 5.56 rifle, a larger-caliber hunting gun, or a precision long-range setup. It's the kind of upgrade that feels small until you feel the difference in control and consistency.

Key Features

• One-slot M-Lok attachment point for quick, tool-free adjustment once mounted
• Black anodized aluminum construction—lightweight and corrosion-resistant
• Includes mounting hardware (screw and nut)
• Low-profile design maintains sight line and accessory clearance
• Gen 2 refinement for consistent performance

Specifications

Frequently Asked Questions

Will this handstop work on my M-Lok rail?

Yes, as long as your handguard or rail system features M-Lok slots. The MAR133G2 uses a single M-Lok attachment point and mounts securely with the included hardware.

What rifles and calibers is this compatible with?

This handstop works on any rifle platform that uses M-Lok rails—AR-15s, AR-10s, and other tactical or sporting rifles with M-Lok handguards. It is caliber-agnostic and functions the same whether you're running 5.56 NATO, .308, or other calibers.

What comes in the box?

The TacFire MAR133G2 handstop includes the aluminum handstop body, one mounting screw, and one nut. A hex wrench is required for installation but is not included.

Is this handstop easy to install?

Yes. Installation is straightforward: locate an open M-Lok slot on your handguard, insert the screw through the handstop and into the slot, and secure it with the included nut. No special tools beyond a hex wrench are needed.