The Mauser M-15 is a semi-automatic .22 LR rifle with a 16.5" barrel and a 22+1 round capacity, finished in black and bronze. It runs on a standard semi-auto action and ships with an adjustable side-folding stock. 
 

Key Specifications 

• Barrel Length: 16.5 inches 
• Caliber: .22 LR 
• Capacity: 22+1 rounds 
• Weight: 6.45 lbs 
• Finish Color: Black / Bronze 
• Condition: New in Box 
• Manufacturer: Mauser 
• Model Number: M15 
   

Detailed Features 

The side-folding stock adjusts for length of pull and cheek rest height, which helps shooters of different sizes get a consistent cheek weld. Flip-up front and rear sights handle target acquisition quickly and fold flat when running an optic. The muzzle flash hider reduces visible signature, which matters in lower-light shooting conditions. 
 
Barrel twist rate is 1:16", which works across the standard .22 LR bullet weight range. At 6.45 lbs it's a bit heavier than some .22 semis but the weight is mostly in the barrel and chassis, which helps with stability.

Owners of the Mauser M-15 .22 LR Semi-Auto Rifle tend to land somewhere between satisfied and enthusiastic, with a few real complaints mixed in.

Affordability comes up often as a reason people bought it. For a named-brand .22 with an adjustable folding stock and reasonable capacity, buyers generally feel they got fair value. Accuracy at typical .22 LR ranges — 25 to 50 yards — is consistently praised; the rifle shoots tighter groups than the price might suggest.

Weight and balance get positive comments. At 6.45 lbs it's not ultralight, but the rifle feels planted during shooting and tracks well between shots. New shooters particularly mention how manageable it is compared to centerfire options.

The main negatives are reliability and build quality. Feeding issues show up with some ammunition brands, particularly bulk or low-quality ammo. A handful of users flag concerns about long-term durability of certain components compared to more established .22 platforms. Trigger feel is mixed — it works, but some shooters find it heavier or mushier than they'd prefer for precision work.

Aftermarket support is thin. There aren't many accessories or replacement parts specifically for the M-15, which matters more to people who like to modify and less to those who run it stock. The black/bronze color scheme draws favorable comments from buyers who wanted something that looks different from a standard black rifle.