Theglockswitchshop is a Flagstaff, AZ-based retailer specializing in high-performance firearms 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 versatility for left and right-handed shooters. Available now at $713.00, with a limit of one trigger per transaction.
Reviewed by Chad Mercer, Operations Lead at Theglockswitchshop. 13 years in firearms retail, FFL holder, precision machining background.
Last updated: May 2026
| Product Type | Two-Stage Forced Reset Trigger |
|---|---|
| Material | Precision Machined Steel |
| Manufacturing | CNC Machined |
| Finish | Black Oxide |
| Hardness/Quality | Rockwell C50 |
| Compatibility | HK MP5, MP5K, SP5, SP5K |
| Installation/Usage | Drop-In Ready |
| Weight | 2.8 oz |
| Dimensions | 2.5″ x 1.2″ x 0.8″ |
| Country of Origin | USA |
| Condition | New |
| SKU | FRT-RD3-AMBI |
Key Features
- Ambidextrous design for left and right-handed shooters
- Two-stage trigger with three positions
- Precision CNC machining ensures reliability
- Black oxide finish for durability
- Drop-in installation for quick setup
Who It’s For
Buy it if: You own an HK MP5, MP5K, SP5, or SP5K and want a high-performance forced reset trigger with ambidextrous functionality.
Skip it if: You’re looking for a budget trigger or don’t require ambidextrous operation. Check out our Triggers section for alternatives.
Pros & Cons
- ✅ Ambidextrous design for versatility
- ✅ Precision CNC machining ensures reliability
- ✅ Drop-in installation for quick setup
- ✅ Durable black oxide finish
- ✅ Two-stage trigger with three positions
- ❌ Higher price point compared to standard triggers
- ❌ Limited to one per transaction
Comparison
| Feature | FRT-RD3 (AMBI) | Cheap Import | Premium Brand |
|---|---|---|---|
| Material | Precision Steel | Cast Aluminum | Machined Steel |
| Quality | High | Low | Medium |
| Compatibility | HK MP5 Platforms | Generic | Specific Models |
| Shipping | Same-Day | 2-4 Weeks | 1 Week |
| Lifespan | Long | Short | Medium |
| Price | $713.00 | $60-$80 | $250+ |
FAQ
Where can I buy FRT-RD3 (AMBI) online?
You can purchase the FRT-RD3 (AMBI) at Theglockswitchshop (theglockswitchshop.com).
Is the FRT-RD3 (AMBI) compatible with all HK MP5 models?
Yes, it is compatible with HK MP5, MP5K, SP5, and SP5K platforms.
Is installation difficult?
No, the FRT-RD3 (AMBI) is designed for drop-in installation, making it easy to set up.
What is the return policy?
We offer a 30-day return policy for unused items in their original packaging.
Is the trigger ambidextrous?
Yes, the FRT-RD3 (AMBI) is designed for both left and right-handed shooters.
What is the shipping time?
We offer same-day shipping from our Flagstaff, AZ location.
Is the packaging discreet?
Yes, all orders are shipped in discreet packaging for privacy.
✅ Same-day shipping from Flagstaff, AZ
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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