Product Description The Angstadt Arms HUB to 1/2x28 Booster Assembly is a complete Nielsen device engineered to allow any HUB-compatible suppressor with 1.375x24 TPI threading to function reliably on pistols with tilting or reciprocating barrels. Mounting at the rear of the suppressor, this booster assembly enables the suppressor to cycle in sync with the barrel during operation, ensuring consistent, dependable performance across a wide range of 1/2x28-threaded pistol hosts. The assembly arrives as a complete, ready-to-install kit, including the 1.375x24 to 1/2x28 mount, piston, spring, and O-ring, so no additional components are required. Finished in black, this booster assembly reflects the high-quality construction and precision engineering that Angstadt Arms is known for. Product Highlights Complete Nielsen device booster assembly designed for HUB-compatible suppressors with 1.375x24 TPI threading Compatible with standard 1/2x28-threaded pistol host barrels for broad platform versatility Allows the suppressor to cycle properly on pistols with tilting or reciprocating barrels for reliable operation Ships as a full kit including the 1.375x24 to 1/2x28 mount, piston, spring, and O-ring for immediate installation Durable black finish built to Angstadt Arms&'; exacting quality and performance standards Specs Brand: Angstadt Arms MPN: AAHUBBA228 UPC: 850053228728 Type: Nielsen Device / Booster Assembly Suppressor Compatibility: HUB Compatible Suppressors Suppressor Thread: 1.375x24 TPI Host Thread: 1/2x28 Finish: Black Includes: 1.375x24 to 1/2x28 Mount, Piston, Spring, O-Ring Width: 4.9" Length: 6.6" Height: 1.8" Weight: 0.345 lbs Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>