The Great Lakes Firearms AR-10 is a .308 Win semi-automatic rifle with an 18-inch barrel, direct impingement action, and 20+1 capacity. The aluminum frame and receiver are finished in black Cerakote, and a muzzle brake is included standard. Weight is 8.25 lbs and barrel twist is 1:10". The collapsible stock adjusts to fit different shooter builds, and a safety selector switch is standard. 
 

Key Specifications 

• Model: AR-10 
• Caliber: .308 Win 
• Action: Semi-Auto 
• Barrel Length: 18 inches 
• Capacity: 20+1 rounds (includes one in the chamber) 
• Safety Feature: Safety Selector Switch 
• Weight: 8.25 lbs (lightweight design for ease of handling) 
• Finish: Black Cerakote for durability and corrosion resistance 
• Frame Material: Aluminum  
• Receiver Material: Aluminum  
• Muzzle Type: Muzzle Brake to minimize recoil  
• Barrel Twist Rate: 1:10" 
   

Detailed Features 

 
The direct impingement system keeps the mechanical parts count lower than a piston design and handles .308 loads reliably when kept clean. At 8.25 lbs it's on the lighter side for an AR-10, though the .308 platform will always carry more weight than a comparable 5.56 rifle. The muzzle brake does real work on recoil -- .308 is a stout round and the brake makes follow-up shots meaningfully faster. 
 
Black Cerakote on the aluminum frame and receiver handles salt, moisture, and field conditions without corroding. The collapsible stock is a practical feature for shooters of different sizes or those who use the rifle in multiple positions. 
 

Usage Scenarios 

• Hunting medium to large game where .308 at distance is the requirement 
• Three-gun or long-range competition where 20+1 capacity and the muzzle brake are useful 
• Home defense as a secondary long-gun option, with the caveat that .308 overpenetration is a real consideration indoors

The Great Lakes AR-10 gets a solid reception among buyers who want a reliable .308 semi-auto without a premium price tag.

Build quality is the most consistent positive -- owners describe it as feeling solid in the hands, and the Cerakote finish holds up to regular use and weather exposure. The direct impingement action cycles smoothly, and most users report no reliability issues across varied .308 ammunition. The muzzle brake is specifically mentioned as effective at reducing felt recoil, which owners appreciate for extended range sessions.

The .308 caliber is a draw for hunters and target shooters who need more range and stopping power than a 5.56 platform provides. Modularity is another positive -- the AR platform means a wide range of optics, grips, and accessories are compatible.

Weight is the most common criticism. At 8.25 lbs unloaded, some buyers find it heavier than they'd prefer for extended field carry. Customer service experiences vary across reports -- some owners describe smooth interactions, others encountered friction.

Overall sentiment skews positive among buyers who knew what they were getting into with the AR-10 format.