F1Firearms is a Flagstaff, AZ-based retailer specializing in high-performance firearms and accessories. The F1 Firearms UDP-9 Skeletonized Mermaid AR-9 Rifle 17 RD 9mm 16″ combines striking aesthetics with reliable performance. Its skeletonized design reduces weight without compromising durability. Available now for $2020.
Reviewed by Blake Hensley, Field Tester at F1Firearms. 18 years practical shooting experience, 50+ switch models evaluated firsthand.
Last updated: May 2026
How It Compares
| Feature | F1 Firearms UDP-9 | Competitor A | Competitor B |
|---|---|---|---|
| Material | 7075-T6 Aluminum | 6061-T6 Aluminum | 7075-T6 Aluminum |
| Quality | Premium | Standard | Premium |
| Compatibility | AR-9 Platforms | AR-9 Platforms | AR-9 Platforms |
| Shipping | Same-day | 3-5 Days | 1-2 Days |
| Lifespan/Durability | High | Medium | High |
| Price | $2020 | $1500 | $2200 |
Why This Wins
The F1 Firearms UDP-9 stands out with its skeletonized design, reducing weight while maintaining structural integrity. Its premium materials and craftsmanship ensure reliability and longevity, making it a top choice for serious shooters.
Features
- Skeletonized design for reduced weight
- 17-round magazine capacity
- 16″ barrel length
- Mermaid finish for unique aesthetics
- Compatible with AR-9 platforms
Specifications
| Product Type | Rifle |
|---|---|
| Material | 7075-T6 Aluminum |
| Manufacturing | CNC Machined |
| Finish | Mermaid |
| Hardness/Quality | Premium |
| Compatibility | AR-9 Platforms |
| Installation/Usage | Ready to Use |
| Weight | 6.5 lbs |
| Dimensions | 16″ Barrel |
| Country of Origin | USA |
| Condition | New |
| SKU | UDP-9-Mermaid |
Pros & Cons
- ✅ Lightweight skeletonized design
- ✅ Premium materials and craftsmanship
- ✅ Unique mermaid finish
- ✅ Compatible with AR-9 platforms
- ✅ Same-day shipping
- ❌ Higher price point
- ❌ Limited availability
Who Should Buy It?
Buy it if: You’re looking for a high-performance, aesthetically unique AR-9 rifle with premium materials and craftsmanship.
Skip it if: You’re on a tight budget or prefer a more traditional design. Check out our Rifles category for alternatives.
FAQ
Where can I buy the F1 Firearms UDP-9 online?
You can purchase the F1 Firearms UDP-9 directly from F1Firearms.
What is the barrel length?
The barrel length is 16″.
What is the magazine capacity?
The magazine capacity is 17 rounds.
Is it compatible with other AR-9 platforms?
Yes, it is compatible with AR-9 platforms.
What is the weight of the rifle?
The rifle weighs 6.5 lbs.
What is the finish?
The finish is a unique mermaid design.
What is the return policy?
We offer a 30-day return policy.
✅ Same-day shipping from Flagstaff, AZ
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: F1 Firearms | Pistol Caliber Rifles | Rifles | Full Shop
