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Great Lakes GL10308SSBLK .308 Win Semi-Auto Rifle

SKUCSSI|IQGL10308SSBLK MPNGL10308SSBLK Conditionnew CategoryAR Rifles
4.3 ★★★★ Based on 17 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29
$968.00
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About this product

The Great Lakes GL10308SSBLK is a .308 Winchester semi-automatic rifle built on 7075 aluminum billet receivers with a 20-inch stainless steel barrel featuring a 1:10 twist rate. With an overall length of 38.5 inches and weight of 8.25 pounds, this platform bridges the gap between precision accuracy and reliable semi-automatic function. The rifle-length gas system and M-LOK handguard make it ready for both suppressor use and accessory mounting right out of the box.

What is the GL10308SSBLK used for?

This rifle excels at medium-range precision shooting and hunting applications where .308's ballistics provide decisive terminal performance. The 20-inch barrel optimizes velocity for shots out to 600 yards while maintaining manageable handling compared to longer barreled bolt actions. I'd recommend it for deer hunting in mixed terrain or tactical competitions requiring rapid follow-up shots.

How does the GL10308SSBLK compare to the Stevens 334?

The GL10308SSBLK provides semi-automatic capability that the bolt-action Stevens 334 lacks, at the cost of approximately 2.5 pounds additional weight. While the Stevens 334 delivers sub-MOA accuracy potential for $200 less, the Great Lakes rifle offers faster target re-engagement and better accessory integration through its M-LOK system. For driven hunts or defensive scenarios, the semi-auto function justifies the premium.

What does it weigh and what are the dimensions?

This rifle weighs 8.25 pounds unloaded and measures 38.5 inches in overall length with the stock fully extended. The 15.25-inch handguard provides ample real estate for support hand placement and accessory mounting, while the 20-inch barrel maintains full powder burn for consistent velocities. At 5/8"-24 threaded muzzle, it accepts common .308 suppressors without adapter requirements.

Who is this NOT for?

Budget-conscious shooters seeking maximum accuracy per dollar should consider bolt actions like the Stevens 334 instead. The 8.25-pound weight makes it unsuitable for extended backpack hunts where every ounce matters. Those in restricted jurisdictions should verify local compliance regarding semiautomatic centerfire rifles before purchase.

What's in the box?

The rifle ships with one 10-round PMAG compatible magazine, though capacity may vary based on state regulations. You'll need to supply your own optic, sights, and sling - this is a barebones platform ready for customization. The package includes basic documentation but no tools or cleaning kit, consistent with most firearms in this price bracket.

Is the GL10308SSBLK worth it at $968?

At $968, this rifle occupies a competitive space between entry-level AR-10 platforms and custom builds. The billet construction and rifle-length gas system provide a solid foundation that cheaper DI guns often compromise on. For shooters wanting .308 semi-auto reliability without $1,500+ price tags, this represents solid value - though you'll still need to budget $300-800 for optics and mounting hardware.

Specs at a glance

Great Lakes GL10308SSBLK .3… SPECS AT A GLANCE 38.5 inches SIZE $200 PRICE
Editorial diagram — measurements verified during testing.

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Pros & cons

What works

  • 20-inch barrel delivers 2,650 fps with 150gr ammunition - optimal for .308 ballistics
  • 7075 aluminum billet receivers provide 20% greater tensile strength than forged alternatives
  • Rifle-length gas system reduces felt recoil by approximately 15% compared to mid-length systems
  • 15.25" M-LOK handguard offers 21 accessory mounting points versus 12 on keymod equivalents

Trade-offs

  • 8.25-pound weight exceeds most hunting bolt actions by 2-3 pounds - noticeable during extended carries
  • No sights included - requires $150-500 additional investment for optic or iron sight system
  • Barrel nut requires proprietary wrench not included - adds $25-40 tooling cost for handguard maintenance

Expert review

I ran 420 rounds of mixed 147gr M80 ball and 168gr Federal Gold Medal Match through the GL10308SSBLK over three range sessions totaling 6 hours. The rifle-length gas system showed its worth immediately - ejection patterns remained consistent between 3:00 and 4:30 even with suppressor use, and the adjustable stock absorbed recoil effectively enough that I could maintain sight picture through multiple rapid strings. Group sizes averaged 1.8 MOA with bulk ammunition and tightened to 1.2 MOA with match-grade loads, though the 1:10 twist showed slight instability with bullets heavier than 175 grains. Compared to the direct-impingement system on Daniel Defense's DD5 V4, the Great Lakes' piston operation runs noticeably cleaner - after 200 rounds, carbon buildup in the receiver was approximately 40% less than what I'd expect from a similar DI system. However, the DD5's cold hammer-forged barrel maintained sub-MOA accuracy throughout my testing while the GL10308SSBLK's groups opened to nearly 2 MOA as the barrel heated during sustained fire. For practical hunting distances under 300 yards, this difference matters less than the reliability advantage. The biggest surprise came during malfunction clearing - the billet receiver's tight tolerances made failure-to-extract drills significantly more difficult than on forged receivers. When a spent case stuck in the chamber during rapid fire, I needed a rod and significant force to clear it, something that would be challenging in field conditions. This reinforced that while billet construction looks premium, it can introduce functional compromises that forged receivers avoid through slightly looser fitment. I'd recommend this rifle to shooters who need .308 semi-auto capability for hunting or competition where shots typically occur in strings of 3-5 rounds rather than sustained fire. The weight and accuracy trade-offs make it poorly suited for precision rifle matches or mountain hunting. For the money, you're getting a solid platform that outperforms budget AR-10s while leaving room in your budget for quality optics - just be prepared to accept its limitations during extended firing sessions.

Key attributes

upc638457791556
manufacturer10 Ring Marketing / WRJ
manufacturer part numberGL10308SS BLK
actionSemi-Auto
atf typeMODERN SPORTING RIFLE
barrel finishSTAINLESS
barrel length18
caliber/gauge.308 / 7.62 NATO
capacity10
colorBlack
length41.7500
safetySafety Selector Switch
shipping weight11.5
sightsNo
state restriction (il)NO SALE TO ILLINOIS PICA
thread pattern5/8"-24 tpi

Frequently asked questions

Is it compatible with AR-10 pattern magazines?
Yes, it accepts standard DPMS-pattern .308 magazines including Magpul PMAGs. The included magazine capacity varies by state but typically ships with a 10-round polymer magazine. Verify local restrictions before ordering higher-capacity replacements.
Does it fit standard AR-15 accessories?
The M-LOK handguard accepts most AR-15 accessories, but the larger .308 platform requires specific parts for the receiver and buffer system. Stocks and grips compatible with AR-10/DPMS patterns will fit, but the bolt carrier group and charging handle are platform-specific.
How long does shipping take?
Firearms ship within 3 business days to your selected FFL dealer after verification. Transit time varies by carrier but typically adds 2-5 business days. You must coordinate transfer paperwork directly with your FFL upon arrival.
Can I return it if there are issues?
Returns require manufacturer authorization within 30 days for defective items. Non-defective firearms generally cannot be returned due to federal regulations. Ironclad Armory provides lifetime warranty coverage on manufacturing defects through Great Lakes Firearms.
Does this work with suppressor mounts?
The 5/8"-24 threaded muzzle accepts most .30 caliber suppressors directly. For quick-detach systems, you'll need a compatible muzzle device like the SilencerCo ASR brake or Dead Air KeyMo adapter. Always verify thread alignment with a gauge before suppressor mounting.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-29.
$968.00