TacFire MAR133G3 Gen 3 Black Aluminum Handstop for M-Lok Rail - 2 Slot

The TacFire MAR133G3 Gen 3 Black Aluminum Handstop for M-Lok Rail is a compact, lightweight rail accessory built to anchor your support hand and improve control during shooting. Designed for rifles and carbines equipped with M-Lok rail systems, this handstop clamps directly to your rifle's forend without requiring tools, giving you a fixed reference point for consistent hand placement whether you're working a precision rifle, running drills on the range, or dialing in a hunting rifle.

Built from aluminum, the MAR133G3 keeps added weight to a minimum while delivering the rigidity you need under recoil. The two-slot design works with standard M-Lok hardware, making installation straightforward on any compatible platform. Unlike a traditional foregrip, a handstop doesn't extend far ahead of the rail—it's meant to be a subtle hand-registration device rather than a full grip, making it ideal if you want to preserve the rifle's handling characteristics or stay within specific competition or hunting rules.

Whether you're building a lightweight hunting rifle, a precision long-range rig, or a modular AR platform, the Gen 3 handstop offers a no-frills solution to hand control and repeatability. It's particularly popular with shooters who value minimalist, low-profile accessories or who practice strong-side grip techniques.

Key Features

• M-Lok compatible — mounts to any M-Lok rail system with standard hardware
• Aluminum construction keeps weight minimal without sacrificing strength
• Two-slot design provides secure mounting and positioning flexibility
• Low-profile handstop geometry preserves rifle balance and ergonomics
• Tool-free installation and removal for quick setup or swaps
• Black anodized finish resists corrosion and blends with modern rifle aesthetics

Specifications

Frequently Asked Questions

What rifles and rails does this handstop fit?

The MAR133G3 is designed for any rifle or rail system with M-Lok slots. This includes most modern AR-15 variants, modern sporting rifles, and custom builds that feature M-Lok-compatible handguards or rail systems.

Is this a foregrip or a handstop—what's the difference?

A handstop is a shorter, lower-profile accessory that anchors and registers your hand position rather than providing a full grip surface like a foregrip. It's ideal for shooters who want consistency and control without drastically changing the rifle's feel or adding significant bulk.

Do I need tools to install or remove it?

No. The MAR133G3 uses standard M-Lok hardware and can be installed or removed without tools, making it easy to swap out or adjust on the range.

What does the 2-slot design mean?

The handstop features two M-Lok mounting slots, providing secure attachment and allowing minor positioning adjustments along your rail to find the ideal hand reference point for your shooting style.