The Grand Power Stribog SP45A3 is a semi-automatic pistol caliber carbine chambered in .45 ACP. It has an 8-inch threaded barrel, an M-Lok rail for accessory attachment, and a 20-round capacity. The trigger is a milspec AR-style unit and the construction is black finished. 
 

Key Specifications 

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

Detailed Features 

• 8-inch threaded barrel 
• M-Lok rail for handguard accessories 
• Milspec AR-style trigger 
• 20-round magazine capacity 
• Compact configuration

Owners drawn to the Stribog SP45A3 usually want .45 ACP in a compact, magazine-fed platform with modern ergonomics. The M-Lok handguard and AR trigger make it familiar to anyone with AR experience, and the 20-round capacity is a practical advantage over many pistol-caliber alternatives.

The .45 ACP chambering draws mixed opinions in this platform class. Some owners value the lower-pressure cartridge for suppressor-friendly operation with the threaded barrel; others wish the capacity were higher or that the platform offered a 9mm option. Magazine cost and availability for the SP45A3 comes up repeatedly in owner discussions.

Grand Power is less established in the U.S. market than domestic PCC makers, and opinions on parts support and long-term serviceability reflect that. Build quality gets consistent positive marks, but the aftermarket is thin compared to more common platforms.