Great Lakes GL15400SS GL-15 400 Legend 16″ Stainless/Black
The Great Lakes GL15400SS GL-15 400 Legend 16″ Stainless/Black is a lightweight, modern sporting rifle built for hunters and range shooters who want a flat-shooting, hard-hitting cartridge in a reliable AR platform. Chambered in .400 Legend, this 16-inch stainless steel threaded barrel delivers practical accuracy out to 200 yards, while the billet aluminum receivers and Cerakote finish keep weight down and durability up. Whether you’re after whitetail or punching paper, this rifle brings proven Mil-Spec controls and a comfortable adjustable stock right out of the box.
| Manufacturer | Great Lakes Firearms |
|---|---|
| Model | GL15400SS GL-15 |
| Caliber | .400 Legend |
| Barrel Length | 16 inches |
| Material | Stainless steel barrel, billet aluminum receivers |
| Finish | Bi-tone Cerakote: stainless barrel, black receivers |
| Handguard | 15.125-inch M-LOK style |
| Stock | Adjustable black synthetic |
| Weight | Approximately 6.8 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- 16″ Stainless Threaded Barrel – Why it matters: Stainless steel resists corrosion and holds accuracy longer than standard barrels, and the threaded muzzle lets you add a suppressor or brake for reduced recoil and noise.
- Bi-tone Cerakote Finish – Why it matters: Cerakote protects against rust, scratches, and harsh weather, so your rifle stays looking sharp through wet hunting seasons and dusty range days.
- 15.125″ M-LOK Handguard – Why it matters: The slim, free-float design gives you a rock-solid mounting platform for lights, lasers, or bipods, while keeping the rifle light and easy to carry.
- Mil-Spec Controls – Why it matters: Standard safety, bolt catch, and charging handle mean you can swap parts, get repairs, or teach a new shooter without hunting for specialty tools.
- .400 Legend Chambering – Why it matters: This cartridge delivers energy comparable to .450 Bushmaster but with less recoil and a flatter trajectory, making it ideal for deer hunting and intermediate-range target work.
Who It’s For
This rifle is perfect for the family shooter who wants one gun for deer season and weekend plinking. New shooters will appreciate the mild recoil and familiar AR ergonomics. Experienced hunters will like the light weight and stainless barrel for all-weather dependability. If you’ve been looking for a .400 Legend AR that won’t break the bank, this is a solid pick.
Pros & Cons
- Pro: Lightweight at under 7 pounds – easy to carry all day in the woods.
- Pro: M-LOK handguard lets you customize with lights or bipods without heavy quad rails.
- Pro: .400 Legend is legal in straight-wall cartridge states (like Ohio, Michigan, Indiana) for deer hunting.
- Con: The Mil-Spec trigger is functional but not match-grade; you may want to upgrade to a Geissele or Timney for precision work. (Per common shooter feedback, the stock trigger has a bit of creep.)
Comparison: Great Lakes GL15400SS vs. Zev Technologies OZ9 vs. Lone Wolf Distributors G-Series
Note: This table compares the GL-15 to two popular AR-style platforms in a similar price and purpose range.
| Feature | Great Lakes GL15400SS | Zev Technologies OZ9 | Lone Wolf Distributors G-Series |
|---|---|---|---|
| Caliber | .400 Legend | 9mm | 9mm |
| Barrel Length | 16″ | 4.5″ | 4.5″ |
| Platform | AR-15 | Custom pistol | Glock-style pistol |
| Weight | ~6.8 lbs | ~1.5 lbs | ~1.4 lbs |
| Finish | Cerakote | Cerakote | Cerakote |
| Best For | Hunting & range | Competition & carry | Custom builds |
| Price | $869 | $1,200+ | $500+ (stripped) |
| Notes | Complete rifle, ready to shoot | Pistol, not a rifle | Pistol, not a rifle |
The Great Lakes GL15400SS stands out as a complete, hunting-ready rifle in a straight-wall caliber, while the Zev and Lone Wolf options are pistols for different needs. If you want a .400 Legend AR that’s ready out of the box, the GL-15 is the clear choice.
Frequently Asked Questions
What magazines does the Great Lakes GL15400SS use?
This rifle ships with one detachable magazine that is designed for .400 Legend. It typically uses standard AR-15 magazines, but you should verify with the manufacturer for best compatibility. The .400 Legend cartridge fits in standard AR mags, so you can use your existing collection.
Is the barrel threaded? What thread pitch is it?
Yes, the 16″ stainless barrel is threaded. The thread pitch is 5/8″-24, which is common for .30-caliber muzzle devices. You can attach a suppressor, muzzle brake, or flash hider directly.
Can I use this rifle for deer hunting in straight-wall cartridge states?
Yes, the .400 Legend is legal for deer hunting in states like Ohio, Michigan, Indiana, and others that allow straight-wall cartridges. Always check your local regulations before heading out.
What is the effective range of the .400 Legend from this rifle?
With a 16″ barrel, the .400 Legend is accurate and effective for deer-sized game out to about 200 yards. For target shooting, you can reach out to 250-300 yards with good optics.
Why Buy From Us?
- ✅ Nationwide delivery – ships to all 50 states
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Last updated: April 2026
According to NSSF data, .400 Legend rifles now account for over 15% of new straight-wall hunting rifle sales in the U.S., making this a smart choice for the modern hunter.
Browse more AR Rifles or explore our Hunting Rifles section for other straight-wall options. Also check out AR Parts for customization.
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This Great Lakes GL15400SS GL-15 400 Legend 16″ Stainless/Black is ideal for shooters looking to buy guns online with confidence. Built with precision engineering and tested performance, it’s a top-tier choice whether you're looking for home defense, sport shooting, or a trusted everyday carry.
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