Great Lakes Firearms and Ammunition, LLC

(2 reviews) Write a Review
$1,170.00 - $1,265.00
Currently, the build timeline is approximately 4-6 weeks from the date your order is placed, and an FFL is received. Once your build is complete, you will be notified by email with shipping information or pickup instructions.
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Product Overview

The all new GL10 LA (long action) may look like your standard AR-10, and it's even the same size - but its patent pending design packs a MUCH. BIGGER. PUNCH! Introducing the first caliber of the series, the .300 Win Mag. Solid, accurate, and able to go the distance... you can't afford to hunt without it!



Barrel: 24” superior quality stainless steel (416R) with 5R rifling, 1:10 twist
Muzzle Brake: 5/8” x 24 stainless steel (416R)
Lower: Aluminum billet (7075)
Upper: Aluminum billet
Handguard: 20” Aluminum, M-Lok, upper picatinny rail
Gas Block: .750, 4150 Steel, Black Oxide Coated
Gas System: Rifle
Stock: Hogue fixed rifle stock, Black
Magazine: GLFA custom aluminum, 5 round, Black
Trigger: Mil-spec, 5.5-6 lb pull
Grip: Standard Mil-spec
BCG: Custom design
Charging Handle: Custom design
AR-10 Compatible parts: Lower parts kits, trigger, safety
Overall Length: 45.50"
Weight: 9.25 lbs


Due to federal regulations, complete firearms and lower receivers can only be shipped to Federal Firearms License (FFL) holders. If you purchase a firearm or lower receiver, we must receive a signed copy of an FFL before we can begin building your order. Please contact your FFL and have them email a copy of their signed license to as soon as you complete your purchase. Please make sure your name and GLFA order number are both included in the email. 

***If your firearm or lower receiver is being shipped to CA, CO, CT, D.C., HI, IL, MD, MA, NJ, NY, VT, please contact us by phone or prior to making a purchase.

Warranty Information

GLFA Lifetime Warranty - See "Returns & Repairs" page for more details.


(2 reviews) Write a Review

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  • 5

    Posted by Jake on Mar 4th 2024

    Preforms excellently. No Issues So far and very minimal Recoil.

  • 5
    300 win Mag AR10

    Posted by Tom Panek on Jan 28th 2024

    When 6.5 PRC upper is offered please text me . If the upper works with my existing Aero Precision AR 10 lower. tpanek