The Howa M1500 Mini Action in .300 AAC Blackout is a compact bolt-action rifle built around the Mini Action, which is scaled down from the full-size M1500 to better suit shorter cartridges like .300 BLK. The 16-inch threaded barrel and 35.5-inch overall length make it easy to handle in tight spaces. 
 

Key Specifications 

• Caliber: .300 AAC Blackout 
• Barrel Length: 16 inches 
• Capacity: 10+1 rounds 
• Weight: 6 lbs 
• Overall Length: 35.5 inches 
• Length of Pull: 13.87 inches 
• Safety Mechanism: Three-position safety 
• Trigger Type: HACT (2-stage) 
• Muzzle Type: Threaded 
• Stock Material: Synthetic (OD Green finish) 
• Receiver Material: Steel 
• Twist Rate: 1:7" 
   

Detailed Features 

Action and Trigger 

The bolt cycles smoothly and the HACT two-stage trigger has a first stage for take-up and a crisp second stage break with minimal creep. It ships ready to use without trigger work for most shooters. 
 

Stock 

Pillar-bedded synthetic stock in OD Green. The pillar bedding keeps the action-to-stock fit consistent, which matters for repeatable accuracy. The synthetic material holds up to weather without swelling or warping. 
 

Barrel and Muzzle 

16-inch barrel threaded for suppressors or other muzzle devices. The 1:7 twist handles both subsonic and supersonic .300 BLK loads. A detachable magazine allows faster reloads than a hinged floorplate. 
 

Usage 

At 6 lbs and 35.5 inches the M1500 Mini is easy to carry in dense timber or from a vehicle. The .300 BLK chambering is well-suited to suppressed subsonic use — add a can and the bolt-action keeps it genuinely quiet. With supersonic loads it performs as a capable deer or hog rifle out to practical hunting ranges.

Owners of the Howa M1500 Mini in .300 Blackout consistently highlight accuracy as the main strength. Most report tight groups without any bedding work or trigger tuning, which aligns with Howa's reputation for consistent factory QC.

The .300 BLK chambering draws a lot of the discussion. Owners appreciate being able to run subsonic suppressed loads or supersonic hunting loads from the same platform. The 1:7 twist stabilizes both ends of the weight range without issue.

Critical feedback mostly centers on two areas: some find the 6-lb weight slightly heavier than they expected for a compact rifle, and magazine compatibility occasionally comes up — a few users mention needing to test different AICS-pattern magazines before finding reliable feeding.

The OD Green synthetic stock is popular with hunters who want something low-maintenance and field-ready. Most buyers are satisfied with the three-position safety and the HACT trigger out of the box. Customization interest is high — the platform accepts a wide range of aftermarket stocks and optic mounts.