The Keystone Sporting Arms Chipmunk Hunter is a manually-cocked single-shot .22 LR pistol with a 10-inch barrel and walnut stock. Overall length is 17.5 inches and weight is 2.2 lbs. The receiver is blued steel, drilled and tapped for optics. It comes with Williams Fire Sights installed. 
 

Key Specifications 

• Model: Chipmunk Hunter 
• Caliber: .22 LR 
• Action: Single Shot 
• Capacity: 1 Round 
• Barrel Length: 10 inches 
• Overall Length: 17.5 inches 
• Weight: 2.2 lbs. 
• Finish: Walnut Stock with Blued Receiver 
   

Detailed Features 

The rebounding firing pin blocks automatically after each shot, preventing the hammer from resting on the cartridge. The drilled and tapped receiver accepts scope mounts for anyone who wants to add magnification. Williams Fire Sights give a clear sight picture out of the box. At 2.2 lbs the pistol is light enough for smaller-framed shooters. 
 

Usage Scenarios 

The Chipmunk Hunter is a natural fit for small-game varmint work where one careful shot at a time is the approach. It also works for target practice where the single-shot format forces focus on fundamentals. Its size and weight make it approachable for new or younger shooters learning to handle a firearm safely.

The Keystone Chipmunk .22 LR Single Shot Pistol attracts buyers who specifically want a small, simple firearm for introducing new shooters to basic marksmanship. The walnut stock and blued receiver are consistently noted as attractive, and the compact size is cited as an advantage for younger or smaller-framed users.

Accuracy and reliability for target practice and small game are generally reported as satisfactory. The main limitation people raise is the single-shot format itself: it suits deliberate practice but frustrates anyone who wants faster follow-up capability. Trigger pull and ergonomics draw occasional criticism when compared to more contemporary designs.

The overall tone in discussions is positive, with the single-shot limitation being a known trade-off rather than a surprise. Buyers who understand what they are getting tend to be satisfied.