Description
Reviewed by Brett Lawson, Quality Lead at Americangunwarehouse. 17 years in firearms QC, metallurgy background, hardness testing specialist.
Last updated: May 2026
Americangunwarehouse is a Charlotte, NC-based retailer specializing in firearms components. The FRT-MR3 (FLAT) is a precision-machined forced reset trigger mechanism. Built to exacting tolerances with tool-grade steel. In stock now for $603.75 with same-day shipping.
| Product Type | Forced Reset Trigger |
|---|---|
| Material | 4140 Tool Steel |
| Manufacturing | CNC Machined |
| Finish | Black Oxide |
| Hardness | 50-52 HRC |
| Compatibility | AR-15 Platforms |
| Installation | Drop-in (No Gunsmithing) |
| Weight | 3.8 oz |
| Dimensions | 2.5″ x 1.25″ x 0.75″ |
| Country of Origin | USA |
| Condition | New |
| SKU | FRT-MR3-FLAT |
Key Features
- Precision CNC machining for consistent reset
- 4140 tool steel construction withstands high round counts
- Black oxide finish resists corrosion
- Drop-in installation requires no modification to your lower receiver
- Tested to 6,000+ rounds in our QC lab
Pros & Cons
- ✅ Consistent reset force (tested at 3.5-4.2 lbs)
- ✅ No trigger slap or hammer follow
- ✅ Made in USA with certified materials
- ✅ Compatible with mil-spec AR-15 lowers
- ✅ Hardness-tested for longevity
- ❌ Requires proper lubrication (we recommend Slip 2000 EWL)
- ❌ Not compatible with all aftermarket safeties
Who Should Buy
Buy it if: You want a reliable forced reset trigger for training or competition use, prefer US-made components, and need drop-in installation.
Skip it if: You need a binary trigger (see our trigger selection) or live in a restricted state.
FAQ
Where can I buy the FRT-MR3 online?
Available exclusively at Americangunwarehouse (americangunwarehouse.com) with same-day shipping from Charlotte, NC.
What’s the difference between flat and curved models?
The flat version provides more consistent finger placement for rapid fire, while curved follows traditional trigger ergonomics.
Does this work with polymer lowers?
Yes, but we recommend testing fitment as some polymer lowers have slightly different trigger pocket dimensions.
What maintenance does it require?
Clean and lubricate every 500-1,000 rounds. We include installation instructions with lubrication points marked.
Is this legal in my state?
Check local laws – some states restrict forced reset triggers. We cannot ship to restricted jurisdictions.
✅ Same-day shipping from Charlotte, NC
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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