The Axiom features our patent pending split tube technology allowing the user to remove the baffle stack for cleaning no matter how dirty the suppressor gets. - This suppressor is manufactured using light weight durable and easy to clean titanium with a rugged stainless steel split tube. The Axiom is rated for semi and full auto use with the following calibers: - .22LR .17HM2 .22WMR .17HMR .17WSM 22 Hornet and 5.7 x 28. - Specs: - 1/2x28 Threads - 1 Outside Diameter - Full auto rated - Titanium baffles and body - Stainless steel Spilt Tube - 6oz - 5.9 - Heat Resistant Utility Pouch & Wrench Included