Theglockswitchshop is a Flagstaff, AZ-based retailer specializing in high-performance firearms components. The FRT-MR3 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 unique combination of durability and performance. Available now for $603.75.
Reviewed by Chad Mercer, Operations Lead at Theglockswitchshop. 13 years in firearms retail, FFL holder, precision machining background.
Last updated: May 2026
| Product Type | Forced Reset Trigger |
|---|---|
| Material | High-strength steel |
| Manufacturing | CNC machined |
| Finish | Black oxide |
| Hardness/Quality | 58-60 HRC |
| Compatibility | HK MR223, HK MR556 |
| Installation/Usage | Drop-in installation |
| Weight | 2.8 oz |
| Dimensions | 2.75″ x 0.75″ x 0.5″ |
| Country of Origin | USA |
| Condition | New |
| SKU | FRT-MR3 |
Key Features
- Single-stage, 3-position forced reset mechanism
- Includes anti-walk pins and screws for secure installation
- Compatible with HK MR223 and HK MR556 platforms
- CNC machined from high-strength steel
- Black oxide finish for corrosion resistance
Who It’s For
Buy it if:
- You own an HK MR223 or HK MR556 and want a reliable forced reset trigger
- You prioritize precision and durability in your firearms components
- You prefer drop-in installation for ease of use
Skip it if:
- You’re looking for a budget-friendly option (see our Triggers category for alternatives)
- You don’t own an HK MR223 or HK MR556
Pros & Cons
✅ CNC machined from high-strength steel
✅ Drop-in installation for ease of use
✅ Includes anti-walk pins and screws
✅ Compatible with HK MR223 and HK MR556
✅ Black oxide finish for corrosion resistance
❌ Higher price point compared to some alternatives
❌ Limited compatibility with other platforms
Comparison
| Feature | FRT-MR3 | Competitor A | Competitor B |
|---|---|---|---|
| Material | High-strength steel | Aluminum alloy | Stainless steel |
| Quality | CNC machined | Cast | CNC machined |
| Compatibility | HK MR223, HK MR556 | AR-15 | Multiple platforms |
| Shipping | Same-day | 3-5 days | 1-2 days |
| Lifespan | High | Moderate | High |
| Price | $603.75 | $80 | $250 |
Video
FAQ
Where can I buy FRT-MR3 online?
You can purchase the FRT-MR3 at Theglockswitchshop (theglockswitchshop.com).
How to get MR30 Warframe?
This question pertains to a video game and is unrelated to the FRT-MR3 trigger.
How to get MR30?
This question pertains to a video game and is unrelated to the FRT-MR3 trigger.
How to get MR30 pin?
This question pertains to a video game and is unrelated to the FRT-MR3 trigger.
How to get MR3 Warframe?
This question pertains to a video game and is unrelated to the FRT-MR3 trigger.
How long to get MR30 Warframe?
This question pertains to a video game and is unrelated to the FRT-MR3 trigger.
What is the difference between FRT-MR3 and FRT-15L3?
The FRT-MR3 is designed for HK MR223 and HK MR556 platforms, while the FRT-15L3 is compatible with AR-15 platforms.
Trust Signals
✅ Same-day shipping from Flagstaff, AZ
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Internal Links
Browse more: Triggers | Full Shop
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