Glockmod is a Rockford, IL-based retailer specializing in high-performance firearms components. The FRT-MR3 (Flat) is a single-stage forced reset trigger designed specifically for the HK MR223 and HK MR556 platforms. Its precision engineering ensures consistent performance, making it a standout choice for serious shooters. Available now for $603.75.
Reviewed by Chad Mercer, Operations Lead at Glockmod. 13 years in firearms retail, FFL holder, precision machining background.
Last updated: May 2026
Specifications
| Product Type | Single-Stage Forced Reset Trigger |
|---|---|
| Material | Precision-Machined Steel |
| Manufacturing | CNC Machined |
| Finish | Hardened Black Oxide |
| Hardness/Quality | 58-60 HRC |
| Compatibility | HK MR223, HK MR556 |
| Installation/Usage | Drop-In Installation |
| Weight | 2.8 oz |
| Dimensions | Standard AR-15 Trigger Dimensions |
| Country of Origin | USA |
| Condition | New |
| SKU | FRT-MR3-FLAT |
Key Features
- Single-stage forced reset mechanism for rapid fire
- Precision-machined steel construction for durability
- Includes anti-walk pins and selector drums
- Drop-in installation for ease of use
- Designed specifically for HK MR223 and HK MR556 platforms
Who It’s For
Buy it if: You own an HK MR223 or HK MR556 and are looking for a high-performance trigger that enhances rapid fire capabilities.
Skip it if: You are looking for a budget-friendly option or do not own a compatible firearm. Check out our Triggers category for alternatives.
Pros & Cons
- ✅ Precision-machined steel for unmatched durability
- ✅ Includes anti-walk pins and selector drums
- ✅ Drop-in installation for ease of use
- ✅ Designed specifically for HK MR223 and HK MR556
- ✅ Consistent performance under rapid fire
- ❌ Higher price point compared to standard triggers
- ❌ Limited compatibility with other platforms
Comparison
| Feature | FRT-MR3 (Flat) | Budget Import Trigger | Premium Brand Trigger |
|---|---|---|---|
| Material | Precision-Machined Steel | Cast Aluminum | Machined Steel |
| Quality | High | Low | Medium |
| Compatibility | HK MR223, HK MR556 | AR-15 | AR-15 |
| Shipping | Same-Day | 1-2 Weeks | 3-5 Days |
| Lifespan/Durability | Long | Short | Medium |
| Price | $603.75 | $60-$80 | $250+ |
FAQ
Where can I buy FRT-MR3 (Flat) online?
You can purchase the FRT-MR3 (Flat) online at Glockmod (glockmod.com).
Is the FRT-MR3 (Flat) compatible with other platforms?
The FRT-MR3 (Flat) is specifically designed for the HK MR223 and HK MR556 platforms.
What is included with the FRT-MR3 (Flat)?
The package includes 1 x FRT-MR3 Trigger, 2 x Anti-Walk Pins, 4 x Anti-Walk Pin Screws, 1 x A1 Selector Drum, and 1 x A4 Selector Drum.
Is installation difficult?
No, the FRT-MR3 (Flat) is designed for drop-in installation, making it easy to set up.
What is the material of the FRT-MR3 (Flat)?
The FRT-MR3 (Flat) is made from precision-machined steel for maximum durability.
Is the FRT-MR3 (Flat) legal?
Always check local laws and regulations regarding firearm components before purchasing.
What is the price of the FRT-MR3 (Flat)?
The FRT-MR3 (Flat) is priced at $603.75.
✅ Same-day shipping from Rockford, IL
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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