# Rock Island STK100: Precision 9mm Striker-Fired Handgun

**Brand:** Rock Island Armory
**Category:** Full Size Handguns
**Caliber:** 9mm

## Specifications

- **Caliber:** 9mm
- **Barrel Length:** 4.5"
- **Capacity:** 10 rounds
- **Finish:** Black Anodized
- **Weight:** 28.8 oz
- **Overall Length:** 7.9"
- **UPC:** 812285026862
- **SKU:** UCEIe1Bx0

## Description

The Rock Island Armory STK100 is a striker-fired 9mm Luger handgun with a lightweight aluminum frame and black Parkerized finish. At 1.8 lbs. and 10+1 capacity, it covers range shooting, home defense, and everyday carry.

### Key Specifications
- **Brand:** Rock Island
- **Model:** STK100
- **Caliber:** 9mm Luger (9x19 Para)
- **Action:** Striker Fire
- **Capacity:** 10+1 rounds
- **Barrel Length:** 4.5 inches
- **Weight:** 1.8 lbs.
- **Finish:** Black Parkerized
- **Frame Material:** Aluminum

### Detailed Features
- Striker-fired action produces a consistent trigger pull on every shot.
- Aluminum frame holds weight to 1.8 lbs. for extended carry.
- Black Parkerized finish resists wear and corrosion across different environments.
- Sight setup: tenon cut front sight with fixed optic cover rear sight.

## Frequently Asked Questions

**Q: What caliber is the Rock Island STK100?**

A: The Rock Island STK100 is chambered in 9mm Luger.

**Q: What is the barrel length of the Rock Island STK100?**

A: It has a 4.5-inch barrel.

**Q: How many rounds does the Rock Island STK100 hold?**

A: It has a 10+1 capacity.

**Q: Who makes the STK100?**

A: The STK100 is made by Rock Island Armory.

**Q: What type of firearm is the Rock Island STK100?**

A: It is a striker-fired, full-size handgun with an aluminum frame.

**Q: Is the Rock Island STK100 optic-ready?**

A: Yes. Titles list it as optic ready, and it ships with a rear optic cover plate.

**Q: Where can I buy the Rock Island STK100?**

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.*

> Rock island armory has been making 1911s for decades and for a budget 1911 they're some of the best on the market.
>
> — [sootch00](https://www.youtube.com/watch?v=Ac3ntBWIG7s&t=67s)

> It's better than the glock it's not incredible or anything it's not like a ppq or a vp9 trigger.
>
> — [sootch00](https://www.youtube.com/watch?v=Ac3ntBWIG7s&t=508s)

> It's heavy but first pro is that it's weighty to give you better recoil management.
>
> — [sootch00](https://www.youtube.com/watch?v=Ac3ntBWIG7s&t=883s)

> Another con to me is while they do have the optics ready which is big you know the sight is mounted to the plate.
>
> — [sootch00](https://www.youtube.com/watch?v=Ac3ntBWIG7s&t=911s)

> I think this is a real winner a real winner like my chicken dinner.
>
> — [sootch00](https://www.youtube.com/watch?v=Ac3ntBWIG7s&t=1040s)

## What Customers Say

*AI-generated insights from customer reviews*

The Rock Island STK100 gets solid marks on accuracy and value, with some reliability concerns worth noting before buying.

Range performance and accuracy are praised consistently. The striker-fired trigger pull is smooth and predictable, and the ergonomics work well for extended sessions: comfortable grip and accessible controls. The price-to-feature ratio comes up often; many buyers find it delivers full-size 9mm capability at a price point that undercuts comparable options.

On the negative side, reliability problems are the most common complaint, especially early in ownership or with certain ammunition types. A few users find the weight less ideal for concealed carry compared to lighter options. As with most firearms, individual experiences vary based on preferences and use case, but the reliability reports appear in enough reviews to be a real consideration.

## Pricing

**6 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $359.99 |
| Grabagun Com | $449.99 |
| Impactguns Com | $452.69 |
| Kygunco Com | $499.00 |
| Buds Gun Shop | $499.00 |
| Shootingsurplus Com | $499.00 |

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