The Grand Power Stribog SP45A3 is a semi-automatic sub pistol chambered in .45 ACP with an 8-inch threaded barrel. It has a black polymer frame, ships with a brace, and has a 20+1 round capacity. 
 

Key Specifications 

• Brand: Grand Power 
• Model: Stribog SP45A3 
• Caliber: .45 ACP 
• Action: Semi Auto 
• Capacity: 20+1 rounds 
• Barrel Length: 8 inches 
• Color/Finish: Black 
   

Detailed Features 

• 8-inch threaded barrel 
• Black polymer frame and furniture 
• Pistol brace included 
• 20+1 round capacity 
• Sub pistol configuration

Owners of the Stribog SP45A3 in .45 ACP generally appreciate the high-capacity magazine and the threaded barrel as practical out-of-the-box features. The polymer frame keeps weight manageable for a sub pistol platform, and the brace makes it easier to stabilize for longer-range use.

The .45 ACP chambering draws divided opinions compared to the 9mm Stribog variants. Some buyers prefer the larger caliber and the additional mass it brings to felt recoil management, while others find the muzzle energy and muzzle rise more demanding in a compact format. The SP45A3 trigger is described as functional but not refined.

Aftermarket support for the Stribog line is growing but still limited compared to more established platforms. Parts and accessories availability is improving, though buyers note that magazines can be harder to source than for 9mm variants. Overall, Grand Power delivers a capable .45 ACP sub pistol at a competitive price point in a niche that has few direct rivals.