The Great Lakes Firearms GL15 is a semi-automatic AR-15 style pistol chambered in .223 Wylde, which also runs .223 Remington and 5.56 NATO ammunition. It has a 7.5-inch threaded barrel with a 1:8 twist and a white Cerakote finish over 7075 aluminum receivers. It ships with a 30-round magazine and an adjustable brace, with no fixed sights installed. 
 

Key Specifications 

• Brand: Great Lakes Firearms 
• Model: GL15 
• Caliber: .223 Wylde 
• Action: Semi-Automatic 
• Barrel Length: 7.5" 
• Capacity: 30 Rounds 
• Finish: White Cerakote 
• Material: 7075 Aluminum 
   

Detailed Features 

• 1:8 twist, 7.5-inch heavy-profile barrel threaded 1/2x28 for muzzle devices 
• M4 feed ramps on a gas-operated action built around the AR-15 platform 
• M-LOK handguard and Picatinny rail for optics and accessories 
• Polymer stock and butt assembly with an adjustable brace 
• No fixed sights, left optics-ready 
• Ships with one 30-round magazine

Owners of Great Lakes Firearms AR-15 pistols like the GL15 tend to describe the build as solid for the price, with the 7075 aluminum receivers and threaded barrel holding up to regular range use. A few report needing to break the gun in before cycling smooths out, which is common on this class of budget-friendly AR pistol.

The adjustable brace and M-LOK handguard make the GL15 easy to set up for a preferred grip and support hand position. Because there are no fixed sights, most buyers plan to add optics right away, and the Picatinny rail makes that straightforward.

As a standard AR-15 platform pistol, the GL15 pulls from the same wide pool of AR parts, magazines, and accessories as any other AR build. Buyers generally see it as good value for a white Cerakote, brace-equipped pistol, and the caliber flexibility between .223 Wylde, .223 Remington, and 5.56 NATO is seen as a practical plus.