Description
There's something refreshing about a firearm that does one thing and does it well. The Chipmunk Hunter Pistol from Keystone Sporting Arms is a manual cocking, single shot bolt action chambered in .22 WMR, and it strips handgun hunting down to the basics: load one round, cock the metal knob, take your shot, and make it count. At around 2.2 pounds with a 17.5 inch overall length, it rides easy in a pack or on a sling for a day of squirrel hunting or knocking down pests around the property.
Built Around a Threaded Stainless Barrel
The 10.5 inch stainless steel barrel comes threaded 1/2×28 with a protective cap installed, so adding a muzzle device is as simple as spinning off the cap. Stainless construction shrugs off weather and holds up to years of field use, and the camo laminate stock gives it a look that fits right in on a hunt while offering more stability than plain hardwood in wet conditions. Up top, Williams Fire Sights pair a fiber optic front with an adjustable fiber optic rear, which is a real advantage in the low light of early morning or the shadows under a timber canopy.
How the Chipmunk Hunter Handles
The action uses a right hand stock design with a left hand bolt, which sounds odd on paper but works great in practice. Your firing hand stays on the grip while your support hand runs the bolt and cocking knob. The trigger breaks at roughly 2.5 to 3 pounds, which is lighter and cleaner than most factory handguns and a big part of why these little pistols shoot so well. The rebounding firing pin adds a built in layer of safety by staying blocked until the trigger is deliberately pulled.
Why a Single Shot .22 Magnum Makes Sense
The .22 WMR chambering gives you noticeably more reach and thump than .22 LR, flattening trajectory on small game and varmints out where rimfire pistols usually run out of steam. And the single shot format has a way of tightening up your fundamentals since every trigger press matters. Whether it's your dedicated trapline gun, a truck companion, or just a fun way to spend an afternoon plinking, the Chipmunk Hunter earns its spot.
Key Specifications
- Model: Chipmunk Hunter Pistol
- Manufacturer Part Number: 41105
- UPC: 645221411053
- Caliber: .22 WMR (.22 Magnum)
- Action: Manual cocking, single shot bolt action
- Capacity: 1 round
- Barrel: 10.5" stainless steel, threaded 1/2×28 with cap
- Overall Length: 17.5"
- Weight: Approx. 2.2 lbs
- Trigger Pull: Approx. 2.5 to 3 lbs
- Sights: Williams Fire Sights, fiber optic front and adjustable rear
- Stock: Camo laminate
- Finish: Stainless
- Safety: Rebounding firing pin block
- Configuration: Right hand stock with left hand bolt
What’s Included
- Chipmunk Hunter .22 WMR single shot pistol
- 1/2×28 thread protector cap (installed)
- Operator's manual
Frequently Asked Questions
What is the thread pitch on the Chipmunk Hunter Pistol's barrel?
The muzzle is threaded 1/2×28, which is the most common rimfire thread pattern out there. It ships with a protective cap installed, so the threads stay clean until you're ready to mount a muzzle device.
Why does the Chipmunk Hunter have a left hand bolt on a right hand stock?
It's a deliberate design choice that works really well on a single shot pistol. Your right hand stays put on the grip while your left hand handles cocking and running the bolt, so you keep a consistent firing grip between shots. Lefties tend to adapt to it easily too.
Is the Chipmunk Hunter good for small game hunting?
That's exactly what it was built for. The .22 WMR cartridge hits harder and shoots flatter than .22 LR, giving you honest small game and varmint capability at practical handgun distances. The light trigger and fiber optic sights help you make the most of that one shot.
How does the manual cocking system work on this pistol?
After closing the bolt on a round, you pull the metal cocking knob at the rear of the action to cock the firing pin. The pistol won't fire until that knob is deliberately pulled back, and the rebounding firing pin stays blocked until the trigger is pressed. It's a simple, positive system that adds an extra step of intent before every shot.




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