5.56 CAL. Suppressor

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THE OWL 556

WS556 (Shorty) & WL556 (Long)

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TRUSTED WORLDWIDE FOR PRECISION AND DURABILITY

Windham Weaponry continues the respected Maine tradition of precision rifle manufacturing, built by the original craftsmen behind the classic Bushmaster platforms. Known for reliability, durability, and consistent accuracy, Windham’s AR-style rifles have earned recognition across the wider professional community. Over the years, platforms produced from this manufacturing lineage have been utilized or evaluated by various U.S. military and law-enforcement units, as well as international agencies seeking dependable, American-made rifle systems. Windham Weaponry’s commitment to rigorous quality standards, skilled craftsmanship, and lifetime product support has established the brand as a trusted contributor across civilian, professional, and global defense sectors.

QUALITY GOES IN BEFORE THE SUPPRESSOR GOES OUT

THE OWL 556 suppressor series by Windham Weaponry delivers low-signature rifle sound and flash suppression with minimal backpressure. Inspired by the silent flight of an owl, this suppressor line incorporates advanced internal geometry to ensure optimal sound reduction, minimal point-of-impact shift, and long-term durability under heavy firing schedules.

Offered in two distinct length configurations—WS556 (Shorty) and WL556 (Long)—the platform caters to tactical operators and sports shooters requiring either compact, lightweight handling or maximum sound attenuation.

Core Engineering & Key Features

  • Advanced Material Construction: Precision-engineered from Inconel 718, an aerospace-grade superalloy known for exceptional heat resistance, high tensile strength, and extreme erosion resistance under severe firing cycles.

  • Full-Auto Rated: Built to withstand continuous full-automatic fire across standard small-arms calibers.

  • “Intermittent Flow” Baffle System: Internal geometry designed to drastically reduce blowback and gas blow-through back into the upper receiver, maintaining clean weapon operation and mitigating toxic gas blowback to the shooter.

  • Multi-Caliber Compatibility: Optimized for 5.56x45mm NATO / .223 Rem, but fully compatible with secondary small-bore rounds including 5.7x28mm, .17 HMR, and .22 LR.

  • Versatile Mounting Systems: Accommodates industry-standard mounting setups:

    1. WW Flash Hider Mount ( thread interface)

    2. Plan B HUB Mount

    3. HUB-Compatible Direct Thread Adapter

  • Color Finishes: Available in high-temperature Black and Flat Dark Earth (FDE).

  • Maintenance Cycle: Simple cleaning recommendation interval of every 2,000 rounds.

  • Warranty: Covered under Windham Weaponry’s Lifetime Transferable Warranty.

Model Descriptions

1. THE OWL WS556 (Shorty)

The WS556 is tailored for SBR (Short-Barreled Rifle) builds, AR pistols, and close-quarters tactical setups where length and weight must be minimized. At 5.75 inches and 9.5 oz, it adds minimal length to the muzzle, preserving rifle maneuverability in tight spaces without compromising low-backpressure performance.

2. THE OWL WL556 (Long) 

The WL556 is optimized for full-length carbines and precision gas guns where maximum sound attenuation and flash elimination are required. At 7.00 inches and 12.89 oz, the extra internal volume provides higher sound reduction, making it ideal for standard 14.5″ to 18″ barrel configurations.

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