HK MP5 22LR | V2 Drop-In FRT (PET-CF)
PRODUCT DETAILS
Forced reset trigger (FRT) designed specifically for the HK MP5 .22LR platform.
This new V2 Drop-In version features a full through-hole design that slides completely onto the trigger pin and holds itself securely in place — no fabrication or extra retention work required by the end user.
Manufactured from PET-CF (carbon fiber reinforced polyester), offering a strong, lightweight, and heat-resistant solution for consistent performance.
99% of users will experience a true drop-in fit, though some setups may require minor fitting/tuning for optimal function.
WHAT YOU GET
- (1x) HK MP5 .22LR V2 Drop-In FRT — PET-CF (Carbon Fiber Reinforced)
MATERIAL DETAILS
This product is made from PET-CF, a carbon fiber reinforced filament known for:
- High strength-to-weight ratio
- Excellent durability under repeated use
- Increased heat resistance compared to standard polymers
This material is well-suited for functional components requiring strength, stability, and reduced weight.
Provides a strong, lightweight alternative to steel while maintaining functional durability.
CHOOSING THE RIGHT VERSION
PET-CF V2 Drop-In Version
- True drop-in design on most setups
- Full through-hole for secure pin retention
- No fabrication needed
- Lightweight and strong
316 Stainless Steel Version
- Maximum durability
- Best for long-term use
- More resistant to wear over time
COMPATIBILITY
Designed for HK MP5 22LR. Compatibility with clones has not been verified.
INSTALLATION NOTES
This V2 version is designed as a drop-in part.
Installation may require:
- Sliding the FRT fully onto the trigger pin (it self-retains)
- Minor fitting/tuning on some setups for reliable function
Basic mechanical experience is strongly recommended.
FITMENT APPROACH (EXAMPLES)
The full through-hole design greatly simplifies retention. On most HK MP5 22LR setups this will be a true drop-in. Some users may still need light fitting depending on tolerances.
IMPORTANT INFORMATION
- Functionality has been verified when properly installed
- No installation instructions are provided
- No installation assistance is offered
- If assistance is needed, consult a qualified gunsmith
Due to the nature of this product:
- All sales are final
- No refunds will be issued based on installation or functionality issues
ADDITIONAL NOTES
There is limited public documentation available for this platform.
This V2 Drop-In version is intended to make installation significantly easier while maintaining the performance and durability of PET-CF material.
👉 Read the full breakdown here:
HK MP5 .22LR FRT: How It Works, Fitment, and What to Expect
VIEW MORE
Browse our other HK MP5 22LR FRTs:
👉 HK MP5 22LR PET-CF FRT 5 PACK
Looking for a long-term solution?
Check out the 316 Stainless Steel version here.









