Stealth Additive Works Tisha

STEALTH ADDITIVE WORKS TISHA 5.56/6MM SUPPRESSOR

The Stealth Additive Works Tisha is a K-size 5.56/6mm suppressor built from 3D-printed Grade 5 (ELI) titanium. At 4.1 inches long and 10.5-15 oz without mount, it is one of the shortest and lightest rifle suppressors in its caliber range. With the included Plan B mount system, it adds only 3.8 inches to your barrel length.

The Tisha uses a patent-pending internal geometry designed to reduce back pressure while maintaining strong muzzle and shooter's ear suppression. PEW Science tested the Tisha on a 10.3-inch MK18 with Federal XM193 and recorded a composite Suppression Rating of 49.6, ranking it as the highest-performing 5.56 suppressor in their Rankings at the time of testing (SSS-6-209, December 2025). That level of suppression from a K-size can is worth paying attention to.

The exterior profile draws from Soviet-era aesthetics, modeled after the Delta Tek flash hider. "Tisha" is a nod to the Russian word for "quiet." The variable-diameter body measures approximately 2.1 inches at the proximal end and 1.8 inches at the distal end, per PEW Science measurements.

The Tisha is rated for all 6mm projectiles and below, including 5.56/.223, 6mm ARC, 6mm Creedmoor, and 6mm GT. It works on bolt-action and semi-auto platforms. For high rate of fire or full-auto use with the titanium version, the included 2-port muzzle brake (or a similar multi-port brake) is required.

The suppressor uses standard 1.375x24 HUB threading and ships with a Plan B-compatible hub and a 2-port muzzle brake with 1/2-28 threads. It is ready to mount out of the box.

CAPITOL ARMORY'S TAKE

The Tisha is doing something unusual in the suppressor market. A K-size can that tops the PEW Science 5.56 Rankings on a 10.3-inch barrel is not something we expected. The low back pressure combined with strong shooter's ear performance makes it a practical choice for short-barreled 5.56 platforms where gas blowback is a real concern. The 10.5/15 oz weight and 3.8-inch added length keep your rifle balanced and maneuverable. If you run a 5.56 SBR or a 6mm bolt gun and want the shortest, lightest option with verified suppression performance, the Tisha belongs on your shortlist.

Capitol Armory serves as the NFA fulfillment partner for Stealth Additive Works. Purchases made through StealthAdditive.com are processed by our team. We handle all Form 4 paperwork, electronic ATF filing, and direct-to-door delivery after approval. Current lead time from Stealth Additive Works on the Tisha is approximately 8 weeks for production.

FEATURES

• PEW Science composite Suppression Rating of 49.6 on MK18 (SSS-6-209)
• Low back pressure design with strong muzzle and shooter's ear suppression
• Caliber: 5.56mm / 6mm and below
• Length: 4.1 inches (without mount)
• Added Length (with Plan B): 3.8 inches
• Weight: Titanium : 10.5 oz | Inconel : 15 oz(without mount)
• Diameter: ~2.1" proximal / ~1.8" distal (variable)
• Material: 3D-Printed Grade 5 (ELI) Titanium or 718 Inconel
• Finish: Cerakote (Black)
• Mount Type: 1.375x24 HUB
• Thread Pitch on included brake: 1/2-28
• Full-Auto Rated: Yes (with included brake or multi-port muzzle device)
• Available in both Titanium and Inconel versions

WHAT'S INCLUDED

• Stealth Additive Works Tisha 5.56/6mm suppressor
• Plan B-compatible HUB mount
• 2-port muzzle brake (1/2-28 thread)

COMPATIBLE ACCESSORIES

• Any 1.375x24 HUB-compatible muzzle device
• Q Plan B / Cherry Bomb system
• Rearden Manufacturing Atlas / FHD / SPD series
• Multi-port brakes with 1/2-28 threads (for full-auto use)
• Rifle mounts and adapters at Capitol Armory