The BLG Mauser M-15 .22 LR Semi-Auto Rifle is a training-grade platform built for routine marksmanship and general-range use. Chambered in .22 LR, it operates via a semi-automatic action and comes configured with a side charging handle, a side-folding stock with an adjustable cheekrest, and flip-up front and rear sights. Controls are right-hand oriented, and the rifle wears a black finish on both metal and stock components for a tactical appearance without unnecessary ornamentation.
| Manufacturer | BLG Mauser (per manufacturer specs) |
|---|---|
| Model | M-15 |
| Material | Steel barrel, polymer stock (per manufacturer specs) |
| Compatibility | .22 LR ammunition |
| Finish | Black |
| Weight | Approximately 5.2 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Side Charging Handle: Allows for rapid, ambidextrous manipulation without breaking the shooting grip — critical for timed drills and malfunction clearance.
- Side-Folding Stock with Adjustable Cheekrest: Reduces overall length for storage or transport while providing a consistent cheek weld for improved accuracy across different shooters or body armor.
- Flip-Up Front and Rear Sights: Low-profile iron sights that deploy instantly for backup aiming if optics fail; they co-witness with most red dot sights.
- Right-Hand Ergonomics: Safety selector, mag release, and bolt catch are positioned for a right-handed shooter, ensuring intuitive operation under stress.
- Black Finish on All Components: Corrosion-resistant coating that reduces glare and maintains a low-visibility profile in tactical or training environments.
Who It’s For
This rifle is for law enforcement officers running low-cost .22 LR transition training, military personnel honing fundamentals on a budget, and serious shooters who want a dedicated trainer that mirrors the weight and handling of a centerfire carbine without the ammunition cost.
Pros/Cons
- Pro: Side-folding stock with adjustable cheekrest offers storage flexibility and custom fit — rare at this price point.
- Pro: .22 LR ammunition is roughly 80% cheaper than 5.56 NATO, enabling high-volume practice.
- Con: Iron sights are polymer flip-ups; they are functional but not as durable as all-metal units. Upgrade if you plan heavy use on hard surfaces.
Comparison
| Feature | BLG Mauser M-15 .22 LR | Zev Technologies OZ9 .22 LR Conversion | Geissele Super Duty .22 LR |
|---|---|---|---|
| Price | $295.55 | ~$1,200 | ~$1,800 |
| Stock | Side-folding, adjustable cheekrest | Fixed, no cheekrest | Fixed, no cheekrest |
| Charging Handle | Side-mounted | Rear (standard) | Rear (standard) |
| Weight | ~5.2 lbs | ~6.0 lbs | ~6.5 lbs |
| Best For | Budget training, storage | High-end conversion | Competition |
FAQ
What is the magazine capacity?
The BLG Mauser M-15 ships with a 10-round detachable box magazine, compliant with most state laws. Aftermarket 15- and 25-round magazines are available from third-party manufacturers.
Is the rifle compatible with AR-15 accessories?
The M-15 uses a proprietary receiver design, so standard AR-15 handguards and pistol grips do not fit. However, the stock accepts standard buffer tube adapters for aftermarket options.
Does the side-folding stock lock securely when folded?
Yes. The stock locks positively in both the open and folded positions via a spring-loaded latch. There is no wobble when extended.
Can the cheekrest be adjusted without tools?
Yes. The cheekrest is tool-less adjustable via a thumbwheel, allowing on-the-fly height changes for different optics or shooter preference.
What is the barrel twist rate?
The barrel has a 1:16 twist rate, optimized for standard-velocity .22 LR ammunition up to 40 grains. Heavier subsonic loads may not stabilize as consistently.
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Last updated: April 2026
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