Manufactured by a veteran owned company located in Texas, these Buck Rail suppressors are 3d printed in super tough Polycarbonate plastic. Each features 7 cone-shaped baffles with an expansion chamber at the muzzle exit. The threads are reinforced with a 1/2″-20 steel solid-walled EZ Lok insert. It was was originally tested on the Walther Parrus .177 Caliber Rifle and Crosman 2240XL, but are meant to be compatible with any 1/2″-20 threaded airgun muzzles and adapters and has since been used on many high-powered PCPs. You can select from .177/.22, .25, .30 and now .35 caliber options and choose between their smaller diameter tapered suppressor or larger diameter suppressor without taper.