# Rock River Arms RUK-9BT 9mm 4.5in

**Brand:** Rock River Arms
**Category:** Pistol Caliber Carbines
**Caliber:** 9mm

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 4.5"
- **UPC:** 842834124671
- **SKU:** UCEpzS5p1

## Description

The Rock River Arms RUK-9BT is a 9mm AR-15 pattern pistol with a 4.5-inch barrel and a 17-round capacity. It ships with an SBA3 brace, flip-up sights, and a 2-stage trigger. The finish is blue/black.

### Key Specifications
- **Brand**: Rock River Arms
- **Model**: RUK-9BT
- **Caliber**: 9mm
- **Action**: Semi Auto
- **Capacity**: 17 rounds
- **Barrel Length**: 4.5 inches

### Detailed Features
- 4.5-inch barrel in an AR-15 pattern 9mm pistol configuration
- Ships with SBA3 brace
- Flip-up sights included
- 2-stage trigger
- 17-round magazine capacity

## Frequently Asked Questions

**Q: What caliber is the RUK-9BT?**

A: The RUK-9BT is chambered in 9mm.

**Q: Who makes the RUK-9BT?**

A: The RUK-9BT is made by Rock River Arms.

**Q: What type of firearm is the RUK-9BT?**

A: It is a 9mm AR-15 pattern pistol in the pistol caliber carbine category.

**Q: What is the barrel length of the RUK-9BT?**

A: The RUK-9BT has a 4.5-inch barrel.

**Q: How many rounds does the RUK-9BT hold?**

A: It has a 17-round magazine capacity.

**Q: What accessories does the RUK-9BT ship with?**

A: It comes with an SBA3 brace, flip-up sights, and a 2-stage trigger.

**Q: Where can I buy the RUK-9BT?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> Guns in this configuration are very popular because they offer the maneuverability the portability the handling of that small format carbine or rifle but without the burdensome paperwork and regulations of a true short-barreled rifle.
>
> — [NRApubs](https://www.youtube.com/watch?v=Dm0MeOPkk-I&t=44s)

> They're also a lot easier to shoot than traditional pistols thanks to the longer sight radius for the irons the ability to mount an optic and also the additional point of contact.
>
> — [NRApubs](https://www.youtube.com/watch?v=Dm0MeOPkk-I&t=61s)

> The rok9 is one of the most compact large format air style pistols on the market and it offers a lot of utility and compatibility thanks to its chambering and magazine choice.
>
> — [NRApubs](https://www.youtube.com/watch?v=Dm0MeOPkk-I&t=180s)

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the Rock River Arms RUK-9BT appreciate the 2-stage trigger as a notable differentiator in the 9mm AR pistol segment. Rock River Arms triggers have a reputation for a cleaner break compared to mil-spec drop-ins, and buyers who prioritize the trigger often call it out as the reason they chose the RUK-9BT over competing builds.

The SBA3 brace inclusion is well-received for buyers who want a ready-to-run pistol without additional purchases. Some owners note the 4.5-inch barrel keeps the overall package compact, though they acknowledge the tradeoff in velocity compared to longer-barreled 9mm carbines.

Build quality feedback is generally positive, with the blue/black finish drawing favorable comments for appearance. A recurring criticism is that the proprietary magazine compatibility can limit options depending on which 9mm magazines the buyer already owns, and that aftermarket support is narrower than for some competing 9mm AR platforms.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Grabagun Com | $1350.00 |

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*Data from [GunsNation](https://gunsnation.com)*