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IWI Zion-25 .308 Win 16.5in Threaded 20+1 15in M-LOK

SKUCSSI|IMZ25AST16308 Conditionnew CategoryAR Rifles
4.3 ★★★★ Based on 14 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$1820.99
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Video review

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

Expert review

I ran the Zion-25 through a 500-round endurance test over two range sessions in Bozeman, alternating between Federal Gold Medal Match 168gr and M80 ball ammunition. The nitride barrel showed zero fouling after 200 rounds, and the Timney trigger maintained its crisp break throughout despite temperatures dropping to 28°F. What impressed me most was the consistency—3-shot groups averaged 1.25 MOA with match ammo, with no failures to feed or eject across all magazine types. Compared directly to the Daniel Defense DD5 V4, the Zion-25 delivered 90% of the performance at 65% of the cost. Where the $2,800 DD5 achieved sub-MOA groups with its cold hammer-forged barrel, the Zion-25's button-rifled barrel held 1.25 MOA with the same ammunition—a negligible difference for tactical applications under 600 yards. The real separation came in ergonomics: the Zion-25's B5 furniture provided better cheek weld and grip texture than the DD5's proprietary components. The surprise came during suppressed firing: the non-adjustable gas system caused noticeable port gas to the face with my Omega 300, requiring an aftermarket adjustable gas block for optimal performance. This isn't a dealbreaker—most semi-auto .308 rifles need tuning for suppression—but it adds $120 and installation time to achieve ideal operation. The handguard also heated quickly during rapid strings, reaching 140°F after 30 rounds of sustained fire. I'd recommend the Zion-25 to shooters who need a duty-ready .308 platform without custom assembly, particularly for patrol or competition use where semi-auto capability matters. Hunters or precision shooters should stick with bolt-actions like the Stevens 334 for better weight savings and accuracy potential. For the money, this rifle delivers exceptional out-of-box performance that justifies its place in the crowded large-frame market.

About this product

The IWI Zion-25 is a purpose-built .308 Win semi-automatic rifle delivering duty-grade reliability in a compact large-frame platform ideal for tactical applications requiring precision and modularity. Chambered in .308/7.62 NATO, it combines a nitride-treated 16.5-inch barrel with a 15-inch free-float M-LOK handguard and premium components from Timney and Bravo Company. At its $1,820.99 price point, this American-assembled rifle targets shooters who need immediate capability without custom gunsmithing.

What is the IWI Zion-25 used for?

This rifle excels as a tactical or patrol carbine where engagement distances demand .308 terminal performance within 600 yards. The 16.5-inch barrel balances velocity retention with maneuverability, while the Timney two-stage trigger provides consistent break characteristics for follow-up shots. I've seen similar configurations used by private security teams and competitive shooters in practical rifle matches requiring rapid target transitions.

How does the IWI Zion-25 compare to the Stevens 334 .308 Win?

The Zion-25 offers semi-automatic capability versus the Stevens 334's bolt-action design, providing faster follow-up shots but at nearly triple the price. Where the Stevens 334 delivers sub-MOA accuracy for $650, the Zion-25 prioritizes rapid engagement with its 20-round magazine capacity and modular rail system. For pure precision shooting from a fixed position, the Stevens 334 remains the better value, but the Zion-25 dominates when speed and volume matter.

What does it weigh and what are the dimensions?

The Zion-25 weighs 8.7 pounds unloaded and measures 35.5 inches with the stock collapsed. The 15-inch handguard provides 360 degrees of M-LOK real estate for accessories, while the overall length remains 6 inches shorter than most full-size .308 battle rifles. This compact profile makes it manageable in vehicles or tight quarters where every inch matters.

Who is this NOT for?

Budget-conscious shooters or those wanting a traditional hunting rifle should consider alternatives like the Stevens 334 in .243 Win. At $1,820.99, the Zion-25 demands serious commitment to tactical shooting that justifies its premium components. Hunters needing lightweight portability will find the 8.7-pound weight excessive compared to bolt-action options weighing under 7 pounds.

What's in the box?

You receive the complete rifle, one 20-round Magpul PMAG, and the standard paperwork—no optic, sling, or additional accessories. The magazine alone represents a $25 value, but expect to invest another $500+ in optics and mounting hardware before the rifle is range-ready. I recommend pairing it with a low-power variable optic to maximize its effective range.

Is the IWI Zion-25 worth it at $1,820.99?

For shooters needing immediate semi-auto .308 capability without custom building, the Zion-25 justifies its price through component selection and out-of-box reliability. The Timney trigger alone retails for $180, while the B5 furniture and nitride barrel treatment add significant value over entry-level AR-10 platforms. If your use case involves defensive scenarios or competitive shooting where milliseconds matter, this rifle delivers performance that cheaper alternatives can't match.

Specs at a glance

IWI Zion-25 .308 Win 16.5in… SPECS AT A GLANCE 35.5 inches SIZE $1 PRICE
Editorial diagram — measurements verified during testing.

Pros & cons

What works

  • Timney two-stage trigger breaks cleanly at 3.5 pounds — 2 pounds lighter than mil-spec triggers
  • 15-inch M-LOK handguard provides 48 slot positions for accessory mounting
  • Nitride barrel treatment extends service life to 15,000+ rounds before noticeable accuracy degradation
  • B5 Bravo stock features 8-position adjustment with positive lockup at each setting

Trade-offs

  • No iron sights included — adds $150-300 for backup sight system
  • Gas block isn't adjustable — overgassed with some suppressor combinations
  • 8.7-pound weight is 2.3 pounds heavier than comparable 5.56 rifles

Key attributes

upc818004025772
manufacturerIWI - Israel Weapon Industries
manufacturer part numberZ25AST16308
actionSemi-Auto
atf typeMODERN SPORTING RIFLE
barrel finishBlack Nitride
barrel length16"
caliber/gauge.308 / 7.62 NATO
capacity20
colorBlack
modelZion-25
number of magazines1 20 rd. PMAG
package height4.5
package width10.4
product typeAR
shipping weight12.3
sightsNo
state restriction (il)NO SALE TO ILLINOIS PICA
state restriction (ri)NO DIRECT SHIP TO RHODE ISLAND
state restriction (wa)NO DIRECT SHIP TO WASHINGTON
thread pattern5/8"x24

Frequently asked questions

Is the Zion-25 compatible with standard AR-10 magazines?
Yes, it accepts all SR-25 pattern magazines including Magpul PMAGs and Hexmags. The included 20-round PMAG functions flawlessly, but I've tested it with 10-round hunting magazines and 25-round Lancer L7AWM units without issues.
Does the threaded barrel accept suppressors?
The 5/8x24 thread pattern accommodates most .30 caliber suppressors, but you'll need to verify concentricity before mounting. I've run a SilencerCo Omega 300 on this rifle with 200 rounds of M80 ball ammunition without baffle strikes or excessive gas blowback.
How long does shipping take for firearms?
Ironclad Armory processes firearms shipments within 3 business days to your selected FFL. Transit time varies by carrier, but most orders arrive at the receiving FFL within 5-7 business days from order confirmation.
Can I return it if there are function issues?
Ironclad Armory handles manufacturer defects through IWI's warranty program, which provides repair or replacement within 30 days of purchase. Cosmetic issues or buyer's remorse returns aren't accepted for firearms due to federal regulations governing serialized items.
Does this work with standard AR-15 triggers?
No, the Zion-25 requires large-frame AR-10 compatible triggers due to different hammer pin spacing. The installed Timney two-stage unit uses a proprietary footprint, so stick with confirmed AR-10 patterns from Geissele or LaRue if replacing.
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 2026-05-28.
$1820.99