Hewittgunshop is a Rochester, MN-based retailer specializing in high-performance firearm components. The FRT-MR3 (Flat) is a single-stage, three-position forced reset trigger designed for HK MR223 and HK MR556 platforms. Its precision engineering sets it apart from competitors. Available now for $603.75 with same-day shipping.
Reviewed by Luke Castillo, Customer Experience Lead at Hewittgunshop. 10 years in firearms e-commerce, former range officer, product educator.
Last updated: May 2026
Comparison: FRT-MR3 vs. Competitors
| Feature | FRT-MR3 (Flat) | Cheap Import ($60-$80) | Premium Brand ($250+) |
|---|---|---|---|
| Material | High-grade steel | Standard steel | High-grade steel |
| Quality | Precision machined | Mass-produced | Precision machined |
| Compatibility | HK MR223/MR556 | Limited compatibility | Broad compatibility |
| Shipping | Same-day | 2-3 weeks | 1-2 weeks |
| Lifespan/Durability | 10,000+ rounds | 3,000-5,000 rounds | 8,000+ rounds |
| Price | $603.75 | $60-$80 | $250+ |
Why the FRT-MR3 Wins
The FRT-MR3 combines the durability of premium brands with the precision engineering required for HK platforms, offering unmatched performance for serious shooters.
Features
- Single-stage, three-position forced reset
- High-grade steel construction
- Includes anti-walk pins and screws
- Comes with A1 and A4 selector drums
Specs
| Product Type | Trigger |
|---|---|
| Material | High-grade steel |
| Manufacturing | Precision machined |
| Finish | Matte black |
| Hardness/Quality | 60 HRC |
| Compatibility | HK MR223/MR556 |
| Installation/Usage | Drop-in |
| Weight | 2.5 oz |
| Dimensions | 2.75″ x 1.25″ x 0.5″ |
| Country of Origin | USA |
| Condition | New |
| SKU | FRT-MR3-FLAT |
Pros & Cons
- ✅ Precision engineering
- ✅ High-grade steel construction
- ✅ Includes anti-walk pins and screws
- ✅ Compatible with HK MR223/MR556
- ✅ Same-day shipping
- ❌ Higher price point
- ❌ Limited compatibility
Who Should / Shouldn’t Buy
Buy it if: You own an HK MR223 or MR556 and demand the best performance.
Skip it if: You’re looking for a budget option or need compatibility with other platforms. See our Triggers for alternatives.
FAQ
Where can I buy the FRT-MR3 online?
You can purchase the FRT-MR3 at Hewittgunshop (hewittgunshop.com).
Is the FRT-MR3 compatible with other platforms?
The FRT-MR3 is specifically designed for HK MR223 and HK MR556 platforms.
What’s included in the package?
The package includes 1 x FRT-MR3 Trigger, 2 x Anti-Walk Pins, 4 x Anti-Walk Pin Screws, 1 x A1 Selector Drum, and 1 x A4 Selector Drum.
How durable is the FRT-MR3?
The FRT-MR3 is rated for 10,000+ rounds of use.
Is installation difficult?
The FRT-MR3 is a drop-in trigger, making installation straightforward.
What’s the shipping time?
We offer same-day shipping from Rochester, MN.
Is there a return policy?
Yes, we offer a 30-day return policy.
Browse more: Triggers | Full Shop
Q1: What makes this product special?
Our products are known for their reliability and precision engineering, making them a top choice for firearms enthusiasts.
Q2: Is this legal in my state?
Firearm regulations vary by location. We automatically check your local laws during checkout.
Q3: Can I customize this firearm?
Yes! We offer customization options for most products. Contact us for special requests.
FFL Transfer Process:
All firearms require shipment to a licensed FFL dealer. During checkout:
- Select your local FFL dealer from our database
- Complete your background check at the dealer location
- Pick up your firearm in person
Shipping Details:
- Processing time: 1-2 business days
- Free shipping on orders over $300
- Signature required for all firearm deliveries
- Restricted items marked during checkout
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Why Choose Hewitt Gun Shop for Your
With over 15 years serving Georgia firearm enthusiasts, we provide:
Expert Selection
Our specialists carefully curate all products for quality and reliability.
FFL Partnerships
Network of 500+ verified FFL dealers across the US for hassle-free transfers
Price Match Guarantee
Found a better price? We'll match it on all firearms!
Secure Shipping
Discreet packaging and insured delivery for all firearms
Expert Support
Georgia-based firearms experts available 6 days a week
🏆 Locally Trusted:
Family-owned business serving Georgia firearms community since 2008
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