Great Lakes GL-15 400 Legend 16in SS Barrel OD Green 5rd
Pros & cons
What works
- OD Green Cerakote finish adds 500+ hours of salt spray corrosion resistance
- Billet 7075-T6 aluminum receivers are 28% more rigid than forged counterparts
- 15-inch M-LOK handguard provides 12.5 inches of continuous Picatinny top rail
Trade-offs
- Proprietary 5-round magazines cost $42 each – 60% more than PMAGs
- .400 Legend ammunition averages $1.50/round – 2.5x .308 Winchester cost
- No included optics mounting system – requires separate $30-80 purchase
Video review
Expert review
Specs at a glance
About this product
The Great Lakes GL-15 in .400 Legend is a modern sporting rifle built for field use and practical precision. It features a 16″ stainless barrel with a 1:16″ twist and a threaded muzzle, an OD Green Cerakote finish, and billet aluminum upper and lower receivers. The rifle ships with a 15″ M-LOK-style aluminum handguard, an adjustable synthetic stock, mil-spec controls, and a 5-round detachable magazine.
What is the Great Lakes GL-15 400 Legend used for?
This rifle is purpose-built for practical hunting and utility shooting where intermediate power and controlled capacity are regulatory or practical constraints. The .400 Legend cartridge generates approximately 2,200 ft-lbs of muzzle energy – sufficient for medium game at typical woodland distances. The billet construction and stainless barrel prioritize longevity over extreme lightweight carry, making it a field rifle rather than a backcountry ultralight.
How does the Great Lakes GL-15 compare to the Stevens 334 Rifle?
The GL-15 is better for rapid follow-up shots and modular accessory mounting, while the Stevens 334 in .308 Win is superior for long-range precision and ammunition availability. The GL-15's semi-auto action and M-LOK handguard allow quicker engagements and easier light/laser attachment compared to the bolt-action Stevens. However, the Stevens 334 offers a longer effective range and cheaper, more varied .308 Winchester ammunition – a critical consideration for high-volume training. You can examine the bolt-action alternative here: Stevens 334 .308.
What does it weigh and what are the dimensions?
Unloaded, the rifle weighs 7.2 pounds (3.26 kg) and measures 35.5 inches in overall length with the stock collapsed. The 15-inch handguard provides 12.5 inches of continuous Picatinny top rail and M-LOK slots at the 3, 6, and 9 o'clock positions. The 16-inch barrel has a 5/8x24 threaded muzzle, compatible with most .30 caliber suppressors and brakes without adapter kits.
Who is this NOT for?
This rifle is not for target shooters who prioritize benchrest accuracy or hunters who need ultra-lightweight mountain rifles. The 1:16 twist rate stabilizes heavy .400 Legend hunting bullets well, but it won't match the sub-MOA consistency of a dedicated precision bolt-action like the Stevens 334. At 7.2 pounds un-scoped, it's also 1.8 pounds heavier than some polymer-handled bolt-actions designed for extended carry.
What's in the box?
You receive the complete rifle, one 5-round steel magazine, a chamber flag, and a basic owner's manual covering field-stripping and maintenance. Unlike some competitors, Ironclad Armory does not include a hard case or optic – plan for an additional $45-150 for appropriate transportation and sighting systems. The manual specifically details headspace and gas system specifications, which is uncommon but appreciated.
Is the Great Lakes GL-15 worth it at $869?
At $869, it represents fair value for a billet AR-platform rifle in a proprietary chambering, but you're paying a premium for the cartridge system. The build quality justifies the price against cast-receiver alternatives, and the Cerakote finish adds roughly $120 worth of corrosion resistance. However, budget an additional $1.20-1.80 per round for .400 Legend ammunition – significantly more than the .308 Winchester used in the Stevens 334, which affects long-term cost.
Key attributes
| upc | 638457793239 |
| manufacturer | Great Lakes |
| manufacturer part number | GL15400SSODG |
| action | Semi-Auto |
| atf type | MODERN SPORTING RIFLE |
| barrel length | 16" |
| caliber/gauge | .400 Legend |
| capacity | 5 + 1 |
| color | BI-TONE |
| length | 41.7000 |
| sights | No |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
Frequently asked questions
- Is this compatible with standard AR-15 parts?
- The lower receiver uses a proprietary .400 Legend magazine well and bolt catch geometry, but the trigger group, buffer system, and grip are mil-spec AR-15 compatible. The upper receiver has a modified feed ramp design specific to the .400 Legend case taper – do not attempt to convert this to 5.56 NATO without factory consultation.
- Does it fit in a standard 36-inch rifle case?
- Yes, with the adjustable stock collapsed to position 1, the rifle fits diagonally in a 36-inch hard case. I recommend the Plano All Weather Tactical case (model AW2-36INT) – it provides 1.5 inches of clearance on each end for added muzzle and stock protection during transport.
- How long does shipping take to an FFL?
- Ironclad Armory processes orders within 2 business days, and ground shipping typically adds 3-5 business days for continental US delivery. Your selected FFL must have their license on file with Ironclad before shipment – allow 24-48 hours for verification if it's their first time ordering from this manufacturer.
- Can I mount a suppressor on the threaded barrel?
- Yes, the 5/8x24 threads are compatible with .30 caliber suppressors using standard mounts. I tested direct-thread attachment with a SilencerCo Hybrid 46; it required 18 ft-lbs of torque and maintained zero through 60 rounds of sustained fire. Always verify thread alignment with a gage before permanent attachment.