Geissele Automatics Hk Mr 556 2-Stage Trigger For Hk556 & Hk416

The Geissele Automatics HK MR 556 2-stage trigger is a purpose-built drop-in replacement designed specifically for the HK 556 and semi-auto HK 416 platforms. Built on proven Geissele engineering, this trigger delivers the crisp, predictable break shooters expect from a quality rifle upgrade—whether you're running precision drills at the range, working through a carbine course, or setting up a duty-ready rifle. The 4.5 lb total pull weight strikes a balance between control and speed, making it equally at home in tactical training and hunting applications.

This is a non-adjustable, curved trigger shoe in the standard M4 configuration. Its 2-stage design separates take-up from the final break, giving you a clear reset point and the ability to manage your trigger press with intention. Unlike lighter match triggers, this weight and profile are built for the demands of a combat-oriented platform, with the repeatability Geissele is known for.

If you're already running an HK 556 or 416 and want to upgrade from the stock trigger, this is a direct fit—no gunsmithing required. The trigger represents a straightforward mechanical improvement: better feel, more consistency, and the kind of refinement that makes a rifle feel right when you get behind it.

Key Features

• 2-stage trigger design for controlled, predictable breaking
• 4.5 lb total pull weight suitable for tactical and hunting use
• Non-adjustable, curved trigger shoe in standard M4 profile
• Direct fit for HK 556 and semi-auto HK 416 platforms
• Geissele's proven manufacturing and quality control

Specifications

Frequently Asked Questions

Will this trigger fit my HK 556 or HK 416?

Yes. The Geissele HK MR 556 is engineered as a direct fit for both the HK 556 and semi-auto HK 416 platforms. No modifications are needed.

What's the difference between a 2-stage trigger and a single-stage?

A 2-stage trigger separates take-up (the initial travel before resistance builds) from the final break. This gives you a distinct pause point, allowing you to manage your trigger press and reset more deliberately—especially useful in tactical or precision shooting.

Is the 4.5 lb pull weight suitable for hunting or range use?

Yes. The 4.5 lb total weight is a practical, versatile choice for both hunting and range training. It's light enough for precise shot placement without being so light that you risk unintended firing.

Can I adjust the pull weight on this trigger?

No. The HK MR 556 is non-adjustable. The 4.5 lb pull weight is fixed.