Cooper Arms Model 21 Varminter .204 Ruger Single Shot Bolt Action Rifle

SOLD FOR: $1,681.00

LSB#: LSB260429JR039

Make: Cooper Arms of Montana

Model:  21

Serial Number: 5402

Year of Manufacture: Circa 2004-2005

Caliber: .204 Ruger

Action Type: Bolt action, single shot, centerfire rifle

Barrel Length: 26″

Sights / Optics: There is no provision for iron sights. The top of the receiver is drilled and tapped for a scope base. There is a set of Leupold rings and bases installed, 30 mm rings with inserts. 

Stock Configuration & Condition: The stock is one piece checkered walnut, beavertail forend, capped semi pistol grip, straight comb, and rubber buttpad. The LOP is 13 3/4″ from trigger to buttplate. There is light handling wear. There are no chips or cracks. Overall this stock is in Excellent condition.

Type of Finish: Blued, Stainless 

Finish Originality: Original 

Bore Condition: The bore is bright. The rifling is sharp. There is no erosion. There is light fouling. In this writer’s opinion this bore rates 9.75/10.

Overall Condition: This rifle retains about 97% of its original finish. There are light scratches and handling marks. The screw heads are sharp. The markings are clear. Overall this rifle is in Excellent condition. 

Mechanics: The action functions correctly. We did not fire this rifle. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements.

Box, Paperwork & Accessories: Box, scope rings 

Our Assessment: This Cooper Arms Model 21 Varminter in .204 Ruger presents as a high-quality, purpose-built single-shot bolt-action rifle with strong overall condition and desirable varmint-rifle features. Manufactured circa 2004–2005, it is configured with a 26″ barrel, no iron sights, and a drilled-and-tapped receiver fitted with Leupold bases and 30mm rings with inserts. The single-shot action, long barrel, and .204 Ruger chambering make this rifle especially well suited to precision varmint shooting, bench work, and load development.

The bore condition is excellent, described as bright with sharp rifling, no erosion, and only light fouling, rating 9.75/10 in the writer’s opinion. Mechanically, the action functions correctly, though the rifle has not been test fired. The rifle retains about 97% of its original blued and stainless finish, with only light scratches and handling marks noted. The screw heads are sharp, the markings are clear, and the overall metal condition supports its Excellent rating.

The checkered walnut stock is also in Excellent condition, showing only light handling wear with no chips or cracks. Its beavertail forend, capped semi-pistol grip, straight comb, and rubber buttpad are appropriate for a varmint-style rifle, offering stability and shooter comfort. The included box and scope rings add value and completeness to the package. Overall, this is a clean, well-preserved Cooper Model 21 Varminter with excellent bore condition, strong mechanics, and only minor cosmetic wear, making it a particularly appealing example for shooters who value precision-oriented single-shot rifles. Please see our photos and good luck on your bids! MF