Product Description The Yankee Hill Machine (YHM) Nielsen Piston is a durable suppressor booster piston designed to fit YHM booster housing YHM-2055 and many popular pistol suppressors. Built from heat treated 17-4 stainless steel for excellent corrosion resistance, it features 10 adjustment points to help zero out point-of-impact shift. This model is threaded M16x1 left-hand (LH) for .45 caliber hosts. Product Highlights Compatible with YHM booster housing YHM-2055 and many popular pistol suppressors Heat treated 17-4 stainless steel construction for strength and corrosion resistance 10 adjustment points to help zero any impact shift M16x1 left-hand thread pattern for .45 caliber applications Lightweight design at 1.40 oz Specs Product Type: Nielsen piston (suppressor booster piston) Thread Pattern: M16x1 LH (left-hand) Caliber: .45 cal Material: Heat treated 17-4 stainless steel Adjustment Points: 10 Weight: 1.40 oz Compatibility: YHM booster housing YHM-2055; many popular pistol suppressors Not Compatible With: Sidewinder suppressors Manufacturer Part Number: YHM-2062-ML UPC: 841812101604 Brand: Yankee Hill Machine Co 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 products manufacturer.