FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556
SKUrb-74-frt-mr3-single-stage-3-po-b47874
CategoryRare Breed
$500.00 $385.40
About this product
FRT-MR3™ Single-Stage (3-Position) Forced Reset Trigger for the HK MR223 & HK MR556 — 106+ sold. In stock at Blythesportsshop.
The FRT-MR3™ is a single-stage forced reset trigger designed for the HK MR223 and HK MR556 platforms. Built for shooters who demand consistent performance, it offers a crisp 3-position function with reliable reset. Since adding this to our catalog in summer 2025, we’ve had zero warranty claims—a testament to its durability.
What Makes It Stand Out
- Precision-machined components for smooth operation
- Consistent 3-position function with no creep
- Hardened steel construction for long-term reliability
- Drop-in installation with no gunsmithing required
- Tested for reliability in various environmental conditions
Tech Specs
| Compatibility | HK MR223, HK MR556 |
| Trigger Type | Single-stage forced reset |
| Positions | 3 |
| Weight (measured) | 6.8 oz |
| Material | Hardened steel |
| Installation | Drop-in |
Common Questions
Does this work with other HK models?
No, it’s specifically designed for the MR223 and MR556 platforms.
What’s the pull weight?
Factory-set at 4.5 lbs with consistent break and reset.
Is lubrication required?
It comes pre-lubricated, but periodic maintenance is recommended.
✅ Available now. Ships within 24 hours from Helena.
✅ Plain, unmarked packaging
✅ Easy 30-day return policy
✅ 256-bit encrypted checkout
✅ USA-based seller
✅ Plain, unmarked packaging
✅ Easy 30-day return policy
✅ 256-bit encrypted checkout
✅ USA-based seller
Specs at a glance
Sources & methodology.
Editorial review and rating by
The Blythes Sport Shop Team
based on hands-on testing notes and published vendor specifications.
Pricing verified at time of publication.
$500.00 $385.40
Can't find what you're looking for?
Search 50,000+ firearms, parts & accessories. We order it in and ship to your local FFL.