
Rare Breed Triggers — FRT-15, FRT-22 & More
Rare Breed FRT-MR3™ — Forced Reset Trigger for HK MR556/MR223
$603.75
● In stock · Ships from the USA
The Rare Breed FRT-MR3 is a forced reset trigger designed specifically for the HK MR556 and MR223 rifle platforms. It uses the same patented mechanical reset principle as the FRT-15 — the bolt carrier's forward stroke resets the trigger — adapted for the HK roller-delayed operating system.
The FRT-MR3 is compatible with the 3-position selector configuration and ships ready for installation in standard MR556/MR223 trigger groups.
Fits
HK MR556HK MR223
- Patented forced reset for HK MR556/MR223
- 3-position selector compatible
- Curved bow
- USA-made
- Drop-in installation
SKU220551
Product details
Designed specifically for HK MR556/MR223 trigger housing. Not compatible with standard AR-15 trigger groups. Requires 3-position selector.
Specifications
Trigger Bow TypeCurved
Questions about the Rare Breed FRT-MR3™ — Forced Reset Trigger for HK MR556/MR223
Is the FRT-MR3 compatible with AR-15 lowers?
No. The FRT-MR3 is designed exclusively for HK MR556/MR223 trigger housings and is not interchangeable with the AR-15 FRT-15 platform.