Description
There is something refreshing about a firearm that does one thing and does it well. The Chipmunk Hunter Pistol is a manual-cocking, single-shot bolt action chambered in .22 LR, and it strips the shooting experience down to the basics: load one round, cock the knob, line up the sights, squeeze. That simplicity is exactly why these little pistols have such a loyal following among plinkers, small game hunters, and anyone teaching a new shooter the fundamentals without the distraction of a magazine and a fast follow-up shot.
What Sets This Chipmunk Hunter Apart
This version pairs a stainless 9-inch barrel with a handsome black laminate stock, so it shrugs off weather better than a blued and walnut gun while still looking like something you would be proud to pull out of the safe. The muzzle comes factory threaded 1/2×28 with a protective cap installed, which opens the door to suppressors and other rimfire muzzle devices without a trip to the gunsmith. Keystone Sporting Arms builds these in the USA under the same roof as the famous Crickett youth rifles, and the fit and finish reflects that experience.
Sights, Trigger, and Handling
Williams Fire Sights come standard, with a bright fiber optic front and a fully adjustable rear, so you can dial in your zero and pick up the front post quickly even in dim light at the squirrel woods. The trigger breaks light, in the neighborhood of three pounds, which goes a long way toward wringing accuracy out of a rimfire pistol. If you would rather run glass, the receiver accepts Keystone's optional 80042 scope base. At just over two pounds and about 20 inches overall, it carries easily in a pack or on a trapline.
The rebounding firing pin acts as a built-in safety, staying blocked until you deliberately cock the knob, which makes the whole manual of arms easy to understand and easy to teach. Whether you are after cottontails, ringing steel, or introducing someone to their first handgun, this one earns its keep one well-placed shot at a time.
Key Specifications
- Manufacturer: Keystone Sporting Arms (Chipmunk)
- Model Number (MPN): 40103
- UPC: 645221401030
- Caliber: .22 LR (accepts .22 Short, Long, and Long Rifle)
- Action: Manual-cocking single-shot bolt action
- Capacity: 1 round
- Barrel: 9" stainless steel, threaded 1/2×28 with cap
- Stock: Black laminate wood
- Sights: Williams Fire Sights, fiber optic front, adjustable rear
- Trigger Pull: Approximately 2.5 to 3 lbs
- Safety: Rebounding firing pin
- Overall Length: 20.3"
- Weight: Approximately 2.2 lbs
- Optics Compatibility: Accepts Keystone scope base 80042 (sold separately)
- Made In: USA
What’s Included
- Chipmunk Hunter Pistol
- Thread protector cap (installed)
- Owner's manual
Frequently Asked Questions
Is the Chipmunk Hunter Pistol suppressor ready?
Yes. The stainless barrel comes factory threaded in the standard 1/2×28 rimfire pattern with a protective cap already installed. Most .22 suppressors and rimfire muzzle devices will spin right on with no gunsmithing needed.
Can I mount a scope or optic on this pistol?
It ships with excellent Williams Fire Sights, but the receiver is set up to accept Keystone's 80042 scope base, sold separately. Add that base and you can run a pistol scope or small red dot for scoped small game work.
What ammo does the Chipmunk Hunter Pistol shoot?
It handles .22 Short, .22 Long, and .22 Long Rifle in standard or high velocity loadings. That flexibility is one of the perks of a single-shot bolt action since there is no cycling system to worry about. Quiet .22 Short loads paired with a suppressor make for a remarkably hushed setup.
Is this a good pistol for teaching a new shooter?
It is one of the better tools for the job. The single-shot design forces deliberate, one-round-at-a-time shooting, and the rebounding firing pin stays blocked until the knob is intentionally cocked. Light .22 LR recoil and a crisp trigger around three pounds help new shooters build fundamentals fast.





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