The Great Lakes Firearms GL-15 is a semi-automatic AR-15 pattern rifle chambered in .400 Legend with a 16-inch threaded stainless steel barrel. It has an OD Green Cerakote finish, an M-LOK handguard, and a 5-round capacity. 
 

Key Specifications 

• Brand: Great Lakes Firearms 
• Model: GL-15 
• Caliber: .400 Legend 
• Action: Semi Auto 
• Barrel Length: 16 inches 
• Capacity: 5 rounds 
• Color/Finish: OD Green Cerakote 
   

Detailed Features 

• 16-inch threaded stainless steel barrel 
• OD Green Cerakote finish 
• M-LOK compatible handguard 
• Mil-spec AR-15 pattern lower 
• 6-position adjustable stock

Owners of the Great Lakes Firearms GL-15 in .400 Legend often choose it specifically for states with straight-wall cartridge hunting regulations, where .400 Legend is legal and the AR platform provides a familiar manual of arms. The chambering is the primary draw, not the brand name.

The threaded stainless barrel and OD Green Cerakote get positive mentions for both aesthetics and corrosion resistance. Some owners note that the 5-round capacity is consistent with hunting-oriented configurations, though those wanting a range-friendly capacity look for additional magazine options.

Great Lakes Firearms as a brand is less established than the large AR makers, which leads to questions about long-term parts support in online discussions. Most short-term reliability reports from GL-15 owners are positive, but the brand does not yet have the deep review base that older AR manufacturers carry.