Glockmod is a Rockford, IL-based retailer specializing in high-performance firearm components. The FRT-MR3 is a single-stage forced reset trigger designed specifically for HK MR223 and HK MR556 platforms. Engineered for precision and reliability, this trigger delivers consistent performance under rapid fire conditions. Available now for $603.75 with same-day shipping from our Illinois facility.
Reviewed by Chad Mercer, Operations Lead at Glockmod. 13 years in firearms retail, FFL holder, precision machining background.
Last updated: May 2026
| Product Type | Forced Reset Trigger |
|---|---|
| Material | Precision machined steel |
| Manufacturing | CNC machined in USA |
| Finish | Black oxide |
| Hardness/Quality | 58-60 HRC |
| Compatibility | HK MR223, HK MR556 |
| Installation | Drop-in with included anti-walk pins |
| Weight | 3.2 oz |
| Dimensions | Standard HK trigger pack size |
| Country of Origin | USA |
| Condition | New |
| SKU | FRT-MR3 |
Key Features
- 3-position selector drum for versatile firing modes
- Includes both A1 and A4 selector drums for compatibility
- Precision-machined steel construction for durability
- Drop-in installation with anti-walk pin system
- Consistent 3.5-4 lb pull weight
| Feature | FRT-MR3 | Competitor A | Competitor B |
|---|---|---|---|
| Material | Steel | Aluminum | Steel |
| Quality | Precision CNC | Cast | CNC |
| Compatibility | HK MR series | AR-15 | HK MR series |
| Price | $603.75 | $250 | $700 |
Pros & Cons
- ✅ HK-specific design for perfect fit
- ✅ Includes both A1 and A4 selector drums
- ✅ Made in USA with precision CNC machining
- ✅ Anti-walk pin system included
- ✅ Consistent pull weight
- ❌ Higher price point than AR-15 triggers
- ❌ Limited to HK MR platform
Who Should Buy
Buy it if: You own an HK MR223 or MR556 and want a reliable forced reset trigger with HK-specific engineering.
Skip it if: You need a trigger for standard AR-15 platforms (see our AR-15 triggers instead).
FAQ
Where can I buy the FRT-MR3 online?
Available at Glockmod (glockmod.com) with same-day shipping from Rockford, IL.
How does the FRT-MR3 compare to the FRT-15L3?
The FRT-MR3 is specifically designed for HK MR platforms, while the FRT-15L3 fits standard AR-15s.
What’s included with the FRT-MR3?
Trigger unit, anti-walk pins, screws, A1 and A4 selector drums.
Is installation difficult?
It’s a drop-in installation with included anti-walk pins – no gunsmithing required.
What’s the pull weight?
Consistent 3.5-4 lb pull weight.
Where is it made?
Precision CNC machined in the USA.
What’s your return policy?
30-day returns on unused items.
✅ Same-day shipping from Rockford, IL
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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