
Availability: In Stock
Current Stock: Out of stock
The Rock Island Armory STK100 Standard is a 9mm semi-automatic pistol designed for shooters who value capacity, reliability, and straightforward performance without unnecessary frills. With a 17-round magazine, a 4.5-inch barrel, and a compact overall profile, this is a capable carry or range gun that delivers solid results for self-defense or training. Rock Island Armory has built a reputation for no-nonsense firearms at honest prices, and the STK100 follows that tradition.
The STK100's ergonomics and handling are refined in a way that appeals to both new shooters getting comfortable with 9mm pistols and experienced hands looking for a workhorse without premium pricing. The 4.5-inch barrel strikes a balance between velocity and concealability, while the 17-round capacity gives you serious firepower in a footprint that remains practical. Trigger pull runs 4 to 6 pounds—a reasonable standard that's predictable and manageable for both tactical applications and extended range sessions.
Sights are no-nonsense, too. The front sight is a tenon cut with a retaining screw, and the rear is fixed and mounted to a dovetail cut, so they're robust and stay put. The black anodized finish resists corrosion and blends the utilitarian aesthetic. At 1.80 pounds, the STK100 is light enough to carry all day but substantial enough to manage recoil cleanly in 9mm.
Whether you're building a reliable duty gun, a training platform, or adding a versatile 9mm to your safe, the Rock Island Armory STK100 Standard is built to perform without pretense.
| Caliber | 9mm |
| Capacity | 17 rounds |
| Barrel Length | 4.49 inches |
| Overall Length | 7.79 inches (198 mm) |
| Overall Width | 1.36 inches (34.5 mm) |
| Overall Height | 5.33 inches (135.5 mm) |
| Weight | 1.80 lbs (0.82 kg) |
| Trigger Pull | 4–6 lbs |
| Finish | Black anodized |
| Action | Semi-automatic |
| Front Sight | Tenon cut with retaining screw |
| Rear Sight | Fixed, dovetail mounted |
Yes. The 17-round capacity, 4.5-inch barrel, and lightweight design make it a practical option for daily carry or home defense. The fixed sights and semi-automatic action give you reliable performance, and at 1.80 pounds, it won't tire you over a long day.
The front sight is a tenon cut with a retaining screw and the rear sight is fixed and mounted on a dovetail. Both are robust, but this setup doesn't offer infinite adjustability. If you need optics flexibility, consider aftermarket mounting solutions or tritium upgrades down the line.
The trigger pull is between 4 and 6 pounds, which is a solid, predictable standard for a duty or carry gun. It's not a match trigger, but it's clean and manageable for both training and defensive use.
The STK100 Standard has a 4.5-inch barrel, which balances muzzle velocity with a compact overall length of 7.79 inches, making it practical for both range work and everyday carry scenarios.

SKU: 198466575 • Weight: 4.06oz





Availability: In Stock
Current Stock: Out of stock
The Rock Island Armory STK100 Standard is a 9mm semi-automatic pistol designed for shooters who value capacity, reliability, and straightforward performance without unnecessary frills. With a 17-round magazine, a 4.5-inch barrel, and a compact overall profile, this is a capable carry or range gun that delivers solid results for self-defense or training. Rock Island Armory has built a reputation for no-nonsense firearms at honest prices, and the STK100 follows that tradition.
The STK100's ergonomics and handling are refined in a way that appeals to both new shooters getting comfortable with 9mm pistols and experienced hands looking for a workhorse without premium pricing. The 4.5-inch barrel strikes a balance between velocity and concealability, while the 17-round capacity gives you serious firepower in a footprint that remains practical. Trigger pull runs 4 to 6 pounds—a reasonable standard that's predictable and manageable for both tactical applications and extended range sessions.
Sights are no-nonsense, too. The front sight is a tenon cut with a retaining screw, and the rear is fixed and mounted to a dovetail cut, so they're robust and stay put. The black anodized finish resists corrosion and blends the utilitarian aesthetic. At 1.80 pounds, the STK100 is light enough to carry all day but substantial enough to manage recoil cleanly in 9mm.
Whether you're building a reliable duty gun, a training platform, or adding a versatile 9mm to your safe, the Rock Island Armory STK100 Standard is built to perform without pretense.
| Caliber | 9mm |
| Capacity | 17 rounds |
| Barrel Length | 4.49 inches |
| Overall Length | 7.79 inches (198 mm) |
| Overall Width | 1.36 inches (34.5 mm) |
| Overall Height | 5.33 inches (135.5 mm) |
| Weight | 1.80 lbs (0.82 kg) |
| Trigger Pull | 4–6 lbs |
| Finish | Black anodized |
| Action | Semi-automatic |
| Front Sight | Tenon cut with retaining screw |
| Rear Sight | Fixed, dovetail mounted |
Yes. The 17-round capacity, 4.5-inch barrel, and lightweight design make it a practical option for daily carry or home defense. The fixed sights and semi-automatic action give you reliable performance, and at 1.80 pounds, it won't tire you over a long day.
The front sight is a tenon cut with a retaining screw and the rear sight is fixed and mounted on a dovetail. Both are robust, but this setup doesn't offer infinite adjustability. If you need optics flexibility, consider aftermarket mounting solutions or tritium upgrades down the line.
The trigger pull is between 4 and 6 pounds, which is a solid, predictable standard for a duty or carry gun. It's not a match trigger, but it's clean and manageable for both training and defensive use.
The STK100 Standard has a 4.5-inch barrel, which balances muzzle velocity with a compact overall length of 7.79 inches, making it practical for both range work and everyday carry scenarios.
SKU: 198466575 • Weight: 4.06oz
