Description
The Rock River Arms RUK-9BT Pistol 9mm 4.5 in. Black 15 rd. RH is a solid, reliable AR-style 9mm handgun that brings the familiar AR-15 platform into a compact pistol package. Chambered in 9mm, it uses Glock-compatible magazines, so you can stick with what works. With a 4.5-inch chrome-moly barrel and a free-float M-LOK handguard, this pistol is built for accuracy and modularity right out of the box.
Specifications
| Manufacturer | Rock River Arms |
|---|---|
| Model | RUK-9BT |
| Material | Chrome-Moly barrel, aluminum handguard and receiver |
| Compatibility | Glock 9mm magazines (15-round included) |
| Finish | Black anodized |
| Weight | Approximately 4.2 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Free-Float M-LOK Handguard – Why it matters: You can mount lights, lasers, or grips without interfering with barrel harmonics, keeping your shots consistent.
- 4.5-Inch Chrome-Moly Barrel with A2 Flash Hider – Why it matters: This barrel gives you the velocity and durability for range use or home defense, and the flash hider keeps muzzle blast under control in low light.
- Glock Magazine Compatibility – Why it matters: Glock mags are everywhere, reliable, and affordable. You can use your existing 9mm Glock mags without buying new ones.
- AR-15 Style Controls – Why it matters: If you already run an AR-15, the safety, bolt release, and charging handle are exactly where you expect them. No learning curve.
- 15-Round Magazine Included – Why it matters: You get a full-size mag out of the box, so you can start shooting right away without hunting down extra gear.
Who It’s For
This pistol is a great fit for shooters who want a compact, AR-style handgun for the range, plinking, or home defense. It’s also ideal if you’re already invested in Glock magazines and want a pistol that shares them. New gun owners will appreciate the familiar AR controls and the reliability of Rock River Arms’ build quality.
Pros / Cons
- Pros: Glock mag compatibility, free-float M-LOK handguard for accessories, chrome-moly barrel for accuracy, AR-style controls for easy operation, reliable build from a trusted American manufacturer.
- Cons: The 4.5-inch barrel is shorter than some competition, which can reduce muzzle velocity slightly compared to a 5-inch barrel. Also, the pistol is on the heavier side at around 4.2 pounds, which may feel bulky for some shooters.
Comparison
| Feature | Rock River Arms RUK-9BT | Zev Technologies OZ9 | Agency Arms AOS |
|---|---|---|---|
| Caliber | 9mm | 9mm | 9mm |
| Barrel Length | 4.5 inches | 4.5 inches | 4.5 inches |
| Magazine Compatibility | Glock 9mm | Glock 9mm | Glock 9mm |
| Handguard | Free-float M-LOK | Integrated aluminum frame | Modular chassis |
| Weight | ~4.2 lbs | ~2.5 lbs | ~2.7 lbs |
| Price | $1,256.38 | $2,100+ | $2,500+ |
The RUK-9BT is significantly more affordable than the Zev or Agency options, while still offering a free-float handguard and Glock mag compatibility. It’s heavier, but that extra weight can help manage recoil.
FAQ
Does this pistol come with a magazine?
Yes, it includes one 15-round Glock-compatible magazine.
Can I use standard Glock 9mm magazines with this pistol?
Absolutely. The RUK-9BT is designed to work with any standard Glock 9mm magazine, including 10, 15, 17, 33, and other capacities.
Is this pistol legal in my state?
It ships as a pistol with a 15-round magazine. Check your local laws regarding magazine capacity and firearm classifications. We ship to all 50 states but ask that you verify compliance with your state and local regulations.
Does this pistol have a threaded barrel?
No, the barrel is not threaded. It comes with an A2 flash hider pinned and welded in place. If you need a threaded barrel for a suppressor, this model is not configured for that.
What is the warranty on this pistol?
Rock River Arms offers a limited lifetime warranty on their firearms. Contact their customer service for specific coverage details.
Trust & Service
- ✔ Nationwide delivery (all 50 states)
- ✔ Ships 1-2 business days
- ✔ 30-day returns
- ✔ Secure checkout
Last updated: April 2026
Explore more: Semi Auto Handguns | AR-Style Pistols | 9mm Handguns
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