The Inland Monocore series suppressor is 7.5" overall length and 1.5" diameter and weighing in at 19 oz. This monocore suppressor is easily maintained requiring no special tools to service. The I-Core anodized aluminum monocore baffle system features the X Baffle system that was designed to be used dry or with Inland's dB FOAM suppressor foam for maximum efficiency. Length: 8.5" Diameter: 1.5" Number of baffles: Single Monocore Weight 19 oz (weight may vary depending on base) Material: Aluminum/Stainless Steel Base Thread Pitch: 1.375-24 Self-Serviceable Caliber: 9mm Luger Caliber Range: Rimfire - 45-70 Color: Black Finish: Hard Anodized Mount Style: Direct Thread/BreekLok QD (optional) Suppressor Hub/Universal Mount Compatible Full-Auto Rated: No Lifetime Warranty: Yes