Glockswitchmarket is a Meridian, MS-based retailer specializing in premium firearm components. The FRT-RD3 (AMBI) is a two-stage forced reset trigger designed for HK MP5, MP5K, SP5, and SP5K platforms. Its ambidextrous design ensures compatibility for both left and right-handed shooters. Available now for $713.0, with only one trigger per transaction.
Reviewed by Mike Callahan, Head Gunsmith at Glockswitchmarket. 18 years in the firearms industry, certified armorer, 500+ builds.
Last updated: May 2026
| Product Type | Two-Stage Forced Reset Trigger |
|---|---|
| Material | High-Grade Steel |
| Manufacturing | CNC Machined |
| Finish | Black Oxide |
| Hardness/Quality | Rockwell C Scale 58-62 |
| Compatibility | HK MP5, MP5K, SP5, SP5K |
| Installation/Usage | Professional Installation Recommended |
| Weight | 2.8 oz |
| Dimensions | 1.5″ x 0.75″ x 0.5″ |
| Country of Origin | USA |
| Condition | New |
| SKU | FRT-RD3-AMBI |
Key Features
- Ambidextrous design for universal handling
- Two-stage trigger with three positions
- CNC machined from high-grade steel
- Black oxide finish for durability
- Professional installation recommended
Who It’s For
Buy it if:
- You own an HK MP5, MP5K, SP5, or SP5K
- You prefer ambidextrous controls
- You want a reliable forced reset trigger
Skip it if:
- You need a single-stage trigger
- You’re looking for a budget option
Pros & Cons
- ✅ Ambidextrous design
- ✅ High-grade steel construction
- ✅ Black oxide finish
- ✅ CNC machined precision
- ✅ Compatible with HK platforms
- ❌ Higher price point
- ❌ Professional installation recommended
Comparison
| Feature | FRT-RD3 (AMBI) | Cheap Import | Premium Brand |
|---|---|---|---|
| Material | High-Grade Steel | Aluminum | Steel |
| Quality | CNC Machined | Cast | CNC Machined |
| Compatibility | HK MP5 Series | Limited | HK MP5 Series |
| Shipping | Same-Day | 1-2 Weeks | 2-3 Days |
| Lifespan/Durability | 10,000+ Rounds | 2,000 Rounds | 8,000 Rounds |
| Price | $713.0 | $60-80 | $250+ |
FAQ
Where can I buy FRT-RD3 (AMBI) online?
You can purchase the FRT-RD3 (AMBI) at Glockswitchmarket (glockswitchmarket.com).
Is the FRT-RD3 (AMBI) compatible with all HK MP5 models?
Yes, it is compatible with HK MP5, MP5K, SP5, and SP5K models.
What is the installation process for the FRT-RD3 (AMBI)?
Professional installation is recommended for optimal performance.
Is the FRT-RD3 (AMBI) ambidextrous?
Yes, it is designed for both left and right-handed shooters.
What is the warranty on the FRT-RD3 (AMBI)?
It comes with a 30-day return policy.
Can I purchase more than one FRT-RD3 (AMBI) per transaction?
No, only one trigger per transaction is allowed.
What is the material used in the FRT-RD3 (AMBI)?
It is made from high-grade steel with a black oxide finish.
✅ Same-day shipping from Meridian, MS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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