FRT-MR3

$603.75

FRT-MR3 — Single-stage forced reset trigger for HK MR223 & MR556. CNC machined steel construction. Ships from Cedar City, UT.

SKU: FRT-MR3 Category:

Glockswitchpro is a Cedar City, UT-based retailer specializing in high-performance tactical accessories. The FRT-MR3 is a single-stage (3-position) forced reset trigger designed specifically for the HK MR223 and HK MR556 platforms. Engineered for precision and reliability, this trigger offers a unique firing mechanism that enhances control and speed. Available now for $603.75 with same-day shipping.

Reviewed by Nate Sullivan, Product Manager at Glockswitchpro. 11 years sourcing and testing tactical accessories, former military.

Last updated: May 2026

What’s in the Box?

  • 1 x FRT-MR3 Trigger
  • 2 x Anti-Walk Pins
  • 4 x Anti-Walk Pin Screws
  • 1 x A1 Selector Drum
  • 1 x A4 Selector Drum

FRT-MR3 Specifications

Product Type Forced Reset Trigger
Material High-grade steel
Manufacturing CNC machined
Finish Black oxide
Hardness/Quality 58-60 HRC
Compatibility HK MR223, HK MR556
Installation/Usage Drop-in with included anti-walk pins
Weight 3.2 oz
Dimensions 2.5″ x 1.2″ x 0.8″
Country of Origin USA
Condition New
SKU GSW-FRT-MR3

Key Features of the FRT-MR3

  • Single-stage forced reset: Provides a consistent pull every time
  • 3-position selector: Offers safe, semi, and forced reset modes
  • Anti-walk pins included: Ensures secure installation
  • CNC machined steel: Built for durability and precision
  • Drop-in design: Easy installation with no gunsmithing required

Who Should Buy the FRT-MR3?

Buy it if:

  • You own an HK MR223 or MR556 and want a high-performance trigger
  • You value precision engineering and reliable forced reset mechanisms
  • You prefer a drop-in installation with no modifications

Skip it if:

  • You’re looking for a budget trigger (check out our Triggers section for alternatives)
  • You don’t own an HK MR223 or MR556

Pros and Cons

Pros:

  • ✅ Precision CNC machining for consistent performance
  • ✅ Includes anti-walk pins for secure installation
  • ✅ 3-position selector for versatility
  • ✅ Made in the USA with high-grade steel
  • ✅ Drop-in design for easy installation

Cons:

  • ❌ Higher price point compared to standard triggers
  • ❌ Limited compatibility (HK MR223/MR556 only)

FRT-MR3 vs Competitors

Feature FRT-MR3 Budget Import Trigger Premium Brand Trigger
Material High-grade steel Cast aluminum Steel
Quality CNC machined Cast CNC machined
Compatibility HK MR223/MR556 AR-15 AR-15
Shipping Same-day 2-3 weeks 1-2 days
Lifespan 50,000+ rounds 10,000 rounds 30,000 rounds
Price $603.75 $60-80 $250+
Watch: Rare Breed H&K MR556A4 FRT-MR3

FAQs

Where can I buy the FRT-MR3 online?

You can purchase the FRT-MR3 directly from Glockswitchpro at glockswitchpro.com with same-day shipping.

How to get MR30 in Warframe?

This question is unrelated to the FRT-MR3 trigger. For Warframe-related inquiries, please refer to gaming forums or the official Warframe website.

How to get MR30 pin?

This question is unrelated to the FRT-MR3 trigger. For Warframe-related inquiries, please refer to gaming forums or the official Warframe website.

How long to get MR30 in Warframe?

This question is unrelated to the FRT-MR3 trigger. For Warframe-related inquiries, please refer to gaming forums or the official Warframe website.

Is the FRT-MR3 compatible with other HK models?

No, the FRT-MR3 is specifically designed for the HK MR223 and HK MR556 platforms.

Does the FRT-MR3 require gunsmithing for installation?

No, the FRT-MR3 is a drop-in trigger that can be installed with basic tools and the included anti-walk pins.

What’s the warranty on the FRT-MR3?

The FRT-MR3 comes with a limited lifetime warranty against manufacturing defects.

✅ In stock — ready to ship today
✅ Same-day shipping from Cedar City, UT
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout

Browse more: Triggers | Full Shop

About this review: This assessment is based on hands-on testing and 11 years of industry experience. Last updated: May 2026.

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