Description
Glockselectfire is a Fargo, ND-based retailer specializing in high-performance firearms components. The FRT-MR3 (FLAT) is a single-stage, 3-position forced reset trigger designed specifically for the HK MR223 and HK MR556. Engineered for precision and reliability, this trigger offers a smooth and consistent pull. Available now for $603.75 with same-day shipping from Fargo, ND.
Reviewed by Derrick Cole, Range Master & Reviewer at Glockselectfire. 19 years competitive shooting, product tester for 3 manufacturers.
Last updated: May 2026
| 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 Installation |
| Weight | 1.2 oz |
| Dimensions | 2.5 x 0.75 x 0.5 inches |
| Country of Origin | USA |
| Condition | New |
| SKU | FRT-MR3-FLAT |
Key Features
- Single-stage, 3-position forced reset mechanism
- Includes anti-walk pins and selector drums
- CNC machined from high-grade steel
- Black oxide finish for durability
- Drop-in installation for easy setup
Who It’s For
Buy it if:
- You own an HK MR223 or HK MR556 and want a reliable forced reset trigger
- You value precision engineering and durability
- You prefer easy drop-in installation
Skip it if:
- You don’t own a compatible firearm
- You’re looking for a budget option (check out our Triggers for alternatives)
Pros & Cons
- ✅ Smooth and consistent pull
- ✅ Includes all necessary components
- ✅ CNC machined for precision
- ✅ Durable black oxide finish
- ✅ Easy drop-in installation
- ❌ Higher price point
- ❌ Limited compatibility
Comparison
| Feature | FRT-MR3 (FLAT) | Cheap Import | Premium Brand |
|---|---|---|---|
| Material | High-Grade Steel | Low-Grade Steel | High-Grade Steel |
| Quality | CNC Machined | Cast | CNC Machined |
| Compatibility | HK MR223, HK MR556 | Various | HK MR223, HK MR556 |
| Shipping | Same-Day | 2-3 Weeks | 1 Week |
| Lifespan/Durability | High | Low | High |
| Price | $603.75 | $60-80 | $250+ |
FAQ
Where can I buy FRT-MR3 (FLAT) online?
You can purchase the FRT-MR3 (FLAT) at Glockselectfire (glockselectfire.com).
Is the FRT-MR3 (FLAT) compatible with other firearms?
No, it is specifically designed for the HK MR223 and HK MR556.
What is included in the package?
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.
Is installation difficult?
No, it features drop-in installation for easy setup.
What is the material used?
It is CNC machined from high-grade steel.
What is the finish?
Black oxide finish for durability.
Is it in stock?
Yes, it is in stock and ready to ship today.
✅ Same-day shipping from Fargo, ND
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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