Description
If you're running a 7mm Rem Mag AR-10, you need a magazine that keeps up with the power of that cartridge. This Great Lakes Firearms custom billet aluminum magazine is engineered specifically for the GL10 platform, delivering the controlled capacity you want in a package built to last.
The five-round capacity works well for hunters who need compliance in certain areas or prefer controlled loading for precision shooting. The billet aluminum construction means you get a magazine that's tough without unnecessary weight. A lot of shooters overlook magazines, but the quality of your feeding directly impacts reliability. This one runs clean with proper function through compatible GL10 platforms.
Magazine Design and Build Quality
Bilt from the same attention to detail Great Lakes applies to their rifles, this magazine features precision-machined aluminum in a traditional black finish. The design keeps it lightweight while maintaining the rigidity needed for long-action magnum cartridges. The feed lips and follower are engineered to handle the specific dimensions of 7mm Rem Mag ammunition, something important when you're dealing with larger magnum rounds. If you're swapping between rifles or building out a GL10 setup, having factory magazines that fit tight and feed reliably makes life easier.
Why Five Rounds Matter
Five-round capacity might feel limiting if you're used to running higher-capacity magazines, but there's solid logic here. 7mm Remington Magnum is a hard-hitting round designed for hunting applications where controlled fire and shot placement matter more than volume. A compact magazine also means a slightly shorter overall profile on the rifle, and it won't require legal waivers in most areas. For range work where you're grouping shots at distance or field hunting where precision beats speed, this capacity hits the sweet spot.
Key Specifications
- Caliber: 7mm Remington Magnum
- Capacity: 5 rounds
- Material: Aluminum (Billet)
- Finish: Black
- Manufacturer: Great Lakes Firearms & Ammunition
- Model: GL10LA
- Compatible Platform: GLFA GL10 AR-10 (Long Action)
- Manufacturer Part Number: GL10LAMAG57REM
- UPC: 638457792928
- Length: 5.3 inches
- Type: Detachable Box Magazine
- Design: Custom Billet
What’s Included
- 1 x Great Lakes GL10LA 5-round aluminum magazine
Frequently Asked Questions
Will this GL10LA magazine work with other AR-10 platforms?
This magazine is purpose-built for Great Lakes Firearms GL10 long-action rifles. While some AR-10 magazines may physically insert into other platforms, fit and feeding performance can vary. For reliable function and proper fit, stick with using it in GL10 rifles or verify compatibility with your specific platform before relying on it in the field.
Why choose a 5-round capacity for 7mm Remington Magnum?
Five rounds pairs well with 7mm Rem Mag's application as a hunting and precision shooting round where shot placement matters more than magazine volume. It also keeps the rifle profile compact and works in areas with capacity restrictions. For a magnum cartridge, manageable capacity encourages disciplined shooting and controlled fire.
Is this magazine reliable for hunting?
Yes. The billet aluminum construction and precision engineering ensure consistent feeding of 7mm Rem Mag ammunition. Factory magazines like this one are designed to handle the specific dimensions of magnum cartridges, making them reliable for hunting applications where you need to trust your gear.
Can I use this magazine with standard AR-10 ammunition?
No. This magazine is specifically sized for 7mm Remington Magnum. Using it with other calibers like 308 Winchester or 30-06 could result in feeding failures or damage. Always use the correct magazine for your rifle's chambering.




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