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

The IWI Zion-25 .308 Win 16.5in Threaded 20+1 15in M-LOK is a compact large-frame semi-automatic rifle built for duty-grade reliability and precision. Chambered in .308/7.62 NATO, it features a nitride-treated heavy profile barrel and a 15-inch free-float M-LOK handguard with an integrated ARCA rail section. Ergonomics are anchored by Bravo Company B5 furniture and a Timney two-stage trigger. Assembled in the United States by IWI US, this rifle delivers a balance of power and maneuverability that serious shooters demand.

Manufacturer	IWI US
Model	Zion-25
Material	7075-T6 aluminum upper/lower receiver, 4140 steel barrel (per manufacturer specs)
Compatibility	.308 Win / 7.62 NATO
Finish	Nitride-treated barrel, hardcoat anodized receivers
Weight	8.5 lbs (unloaded, per manufacturer specs)
Condition	New

Key Features

• 16.5-inch Nitride-Treated Heavy Barrel: The shorter barrel reduces overall length for close-quarters handling while maintaining the ballistic performance of .308 Win. The 1:10 twist rate stabilizes common bullet weights from 150 to 175 grains reliably.
• 15-inch Free-Float M-LOK Handguard with ARCA Rail: The free-float design improves accuracy by eliminating barrel pressure from accessories. The integrated ARCA section allows direct mounting of tripods and sleds without adapters.
• Timney Two-Stage Trigger: A crisp, predictable break at approximately 4.5 pounds enhances shot-to-shot consistency. Two-stage triggers are favored by precision shooters for their distinct take-up and wall.
• Bravo Company B5 Furniture: The stock and grip offer a proven ergonomic profile with a non-slip texture. The stock includes a friction lock system to minimize wobble during rapid fire.
• 20+1 Round Magazine Capacity: The included magazine provides substantial firepower for defensive or competition use. The 20-round capacity balances reload speed with magazine length for prone shooting.

Who It’s For

The IWI Zion-25 is designed for the shooter who needs a compact .308 platform without sacrificing accuracy. It suits law enforcement professionals, competition shooters in tactical rifle divisions, and hunters who work in brush or vehicle-based scenarios. Collectors will appreciate the U.S. assembly and the blend of Israeli engineering with American components.

Pros and Cons

• Pros: Compact profile for a .308; Timney trigger out of the box; ARCA rail integrated into handguard; nitride barrel for longevity and corrosion resistance; 20-round magazine capacity.
• Cons: The 16.5-inch barrel reduces muzzle velocity compared to 18- or 20-inch barrels, which may affect long-range ballistic performance beyond 800 yards. The rifle is also heavier than some competing AR-10 platforms, partly due to the heavy-profile barrel.

Comparison

Feature	IWI Zion-25	Geissele Automatics Super Duty .308	Lone Wolf Distributors G-Series .308
Barrel Length	16.5 in	16 in	18 in
Twist Rate	1:10	1:10	1:10
Trigger	Timney two-stage	Geissele SSA-E two-stage	Mil-spec single-stage
Handguard	15 in M-LOK with ARCA	15 in M-LOK	15 in M-LOK
Weight	8.5 lbs	8.9 lbs	8.2 lbs
Price	$1,820.51	$2,399.00	$1,499.00

FAQ

What is the twist rate of the IWI Zion-25 barrel?

The barrel uses a 1:10 twist rate, which stabilizes standard .308 Win and 7.62 NATO ammunition from 150 to 175 grains. Heavier match bullets up to 185 grains may also perform well, but 168-175 grain loads are optimal for precision.

Is the IWI Zion-25 compatible with standard AR-10 parts?

Yes, the rifle uses a DPMS-pattern AR-10 lower receiver, which accepts most aftermarket triggers, grips, and stocks. The upper receiver is also DPMS-pattern for handguard compatibility. However, barrel and bolt carrier groups should be specific to the .308 DPMS platform.

Does the IWI Zion-25 come with a muzzle device?

Yes, the 16.5-inch barrel is threaded 5/8×24 and ships with a standard A2-style flash hider. The threads allow easy installation of suppressors or compensators.

What materials are used in the receiver and barrel?

The upper and lower receivers are machined from 7075-T6 aluminum for strength and light weight. The barrel is 4140 steel with a nitride treatment for corrosion resistance and extended service life.

Ready to Order

The IWI Zion-25 .308 Win 16.5in Threaded 20+1 15in M-LOK delivers a compact, accurate large-frame rifle for shooters who demand reliability. According to IWI US, each rifle is assembled in the United States and undergoes a function-check before shipping. According to industry data, the AR-10 platform accounts for approximately 15% of the semi-auto rifle market, and the Zion-25 represents a strong value in that segment. Last updated: April 2026.

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• ✓ Ships 1-2 business days
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