Great Lakes Firearms AR-10 .243 Win 24" ODG/SS 5-Round Semi-Automatic Rifle

The Great Lakes Firearms AR-10 in .243 Win is a precision-focused semi-automatic rifle built for shooters who demand accuracy and reliability without compromise. Chambered in the efficient .243 Winchester—a caliber prized for its flat trajectory, mild recoil, and inherent precision—this rifle combines a 24-inch stainless steel barrel with a modern AR-10 platform, making it equally at home on the range or in the field. The rifle's 7075 aluminum upper and lower receivers deliver rigidity and light weight, while the 5R rifling in the barrel enhances accuracy and reduces fouling. At 9.3 pounds, it's manageable for extended shooting sessions without fatigue.

Ergonomics and modularity are built in. The full-length Picatinny rail on the 20-inch handguard gives you unlimited mounting options for optics, lights, or other accessories. The mil-spec polymer grip and rifle-length gas tube system are proven platforms, and the included muzzle brake—threaded at 5/8 x 24—is engineered for wrench-tight installation without Loctite. The 5-round magazine capacity keeps the rifle compliant in restricted areas while maintaining practical field capacity. Finished in Cerakote over the stainless steel barrel and ODG (Olive Drab Green) accents, this rifle looks the part and stands up to hard use.

Whether you're building a long-range setup, seeking a tack-driving varmint rifle, or want a flat-shooting option for open-country hunting, the .243 Win AR-10 delivers the accuracy and versatility the platform is known for. The mil-spec trigger (5.5–6 lb pull) is predictable and crisp. No sights are included, which means you're free to spec the optic setup to your exact needs—a blank canvas for the shooter who knows what they want.

Key Features

• Semi-automatic AR-10 platform in .243 Winchester for flat-shooting, accurate performance
• 24-inch 416R stainless steel barrel with 1:8 twist and 5R rifling for enhanced accuracy and easy cleaning
• 7075 aluminum upper and lower receivers for strength and lightweight handling
• Full-length Picatinny rail on handguard for unlimited accessory mounting
• Rifle-length gas system with 0.750 gas block for reliable operation
• Included muzzle brake with 5/8 x 24 threads (wrench-tight design)
• 5-round magazine capacity with one magazine included
• Mil-spec polymer grip and trigger (5.5–6 lb pull)
• ODG/stainless Cerakote finish for corrosion resistance and durability
• Overall length: 44 inches; weight: 9.3 pounds

Specifications

Frequently Asked Questions

What optics and accessories can I mount on this rifle?

The full-length Picatinny rail on the handguard accepts any standard Picatinny-mounted optic, light, laser, or vertical grip. The rifle ships with no sights, giving you a clean slate to install the scope or red dot of your choice. The 5/8 x 24 muzzle threads also accept suppressors, flash hiders, or other muzzle devices rated for that pattern.

Is this rifle good for hunting and long-range target shooting?

Yes. The .243 Winchester is known for flat trajectories and inherent accuracy, making it popular for both open-country hunting and precision rifle competitions. The 24-inch barrel and 1:8 twist with 5R rifling are optimized for accurate bullet delivery. This is a rifle you can build into whatever role you need—varmint, mid-range hunting, or match shooting—by choosing your optic and ammunition accordingly.

What caliber is this rifle, and what is it best used for?

This is a .243 Winchester semi-automatic rifle. The .243 Win is a versatile, low-recoil rifle cartridge valued for its flat shooting, mild recoil, and inherent accuracy. It's popular for varmint and predator hunting, open-country big-game hunting, and long-range target shooting where shooters want precision with manageable recoil.

Does this rifle come with a muzzle brake?

Yes, a muzzle brake is included. It is threaded at 5/8 x 24 and is designed to be installed wrench-tight without Loctite.