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One Horse OH-15 Pistol 5.56 10.5" Barrel 30 Round Black
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$549.99
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SKU: OH-OP01-850078799791
Overview
Built around a compact 5.56mm NATO pistol configuration, this model is suited to shooters who want an AR-15-style platform with a shorter overall package for range use or other close-quarters applications where maneuverability matters. Its direct impingement, carbine-length gas system and 1:8" twist rate are paired with a 10.5-inch medium profile barrel, while the threaded muzzle comes with an A2 device and is suppressor-ready for added setup flexibility. The included standard charging handle, mil-spec buffer tube, A2 grip, and KAK pistol brace keep the layout familiar for those already comfortable with the platform. It ships in black with one 30-round magazine, offering a straightforward starting point without extra frills.
Why Hunters Choose the Onehorse
Compact Pistol
A 10.5-inch barrel for a
Direct Impingement,
Carbine-length gas system for a
1:8" Twist
Rate supports a wide range
Threaded 1/2"x28
An A2 device and suppressor-ready
M-lok Handguard
Accessory mounting options for field
Key Features
- Direct impingement, carbine-length gas system in a compact pistol configuration.
- 10.5-inch medium profile barrel with a 1:8" twist rate.
- Chambered in 5.56mm NATO with semi-auto action.
- 1/2"x28 threaded muzzle ships with an A2 muzzle device.
- 9.25-inch M-LOK handguard and standard charging handle.
- Includes a KAK pistol brace, mil-spec buffer tube, and one 30-round magazine.
Best Used For
- Compact 5.56 pistol setup for shooters wanting a shorter AR-style platform.
- Suitable for users planning to run a suppressor with the threaded muzzle.
- Fits experienced AR-15 users who prefer familiar controls and operating feel.
- Useful for range sessions with a wide range of 5.56mm NATO ammunition.
- Appropriate for hunters or outdoorsmen needing a compact semi-auto pistol format.
Specifications
| Action | Semi-Auto |
|---|---|
| Barrel Length | 10.5" |
| Barrel Profile | Medium |
| Blade Finish | Black |
| Brace | KAK Pistol Brace |
| Buffer Tube | Mil-Spec |
| Caliber | 5.56mm NATO |
| Charging Handle | Standard |
| Gas System | Carbine |
| Grip | A2 |
| Handguard Length | 9.25" |
| Handguard Type | M-LOK |
| Included Magazines | 1x 30 Round |
| Model | OH-15 |
| Muzzle Device | A2 |
| Muzzle Thread | 1/2"x28 |
| Twist Rate | 1:8" |
| Type | Pistol |
| Weight | 7.14 lbs. |
Pros
- Compact pistol format with a 10.5-inch barrel for a shorter overall package.
- Direct impingement, carbine-length gas system for a familiar AR-style operating setup.
- 1:8" twist rate supports a wide range of 5.56mm NATO ammunition.
- Threaded 1/2"x28 muzzle ships with an A2 device and suppressor-ready setup.
- M-LOK handguard provides accessory mounting options for field configuration.
- Includes one 30-round magazine and a KAK pistol brace.
Considerations & Trade-offs
- The 10.5-inch barrel and pistol-format configuration make this a compact setup, but it is a shorter platform than a full-length rifle and may require more deliberate setup for the way you intend to use it.
- It ships with an A2 muzzle device, so users planning to run a suppressor or change muzzle setup will need to account for that configuration.
- The included KAK pistol brace and A2 grip are functional, but they keep the package straightforward rather than highly customizable out of the box.
- It includes one 30-round magazine, so additional magazines may be needed to match your preferred range or field setup.
Suggested Comparisons
- AR-style pistols
- Compact 5.56 NATO firearms
- Suppressor-ready pistol platforms
- M-LOK handguard firearms
Suggested Accessories
- M-LOK accessories
- Suppressor-compatible muzzle accessories
- AR-15 pistol sling
- 30-round magazine
Frequently Asked Questions
What type of operating system does the OH-15 use?
It uses a direct impingement, carbine-length gas system.
Is the muzzle threaded for a suppressor setup?
Yes. The muzzle is 1/2"x28 threaded and ships with an A2 muzzle device, and the product description states it is suppressor-ready.
What magazine is included with the pistol?
It includes 1x 30-round magazine.
What are the key barrel details?
The OH-15 has a 10.5-inch medium profile barrel with a 1:8" twist rate.
What brace and handguard come on this model?
It comes with a KAK pistol brace and a 9.25-inch M-LOK handguard.