The BPG Suppressor Cover Heavy is designed to fit suppressors that are 1.5 inches in diameter and can be made to fit any length. All Burn Proof Gear suppressor covers are designed to be 0.5 inches longer than the suppressor itself. This allows the cover to cinch around the front and rear of the suppressor to ensure a ''No-Slip Fit.'' The Heavy cover is made from aerospace and military grade fire retardant materials. DuPont Kevlar has a maximum operating temperature of 1000 F (roughly 180 shots fired of m855). The second component of the Suppressor Cover Heavy is an inner liner comprised of fiberglass mesh sleeving. Its maximum operating temperature is 2000 F. The Suppressor Cover Heavy is compatible with all calibers suppressors (.223, 300 BLK, .308, 5.56 NATO, 7.62 NATO). Once the cover is installed on a suppressor that is 1.5 inches in diameter, the overall diameter of the suppressor with cover installed should not exceed 1.75 inches. The standard cover sizes range from 6 inches to 9.5 inches long and weighs less than 3 ounces at the shortest configuration and 5.5 ounces at 12.5 inches long. The cover is a two piece design; the inner sleeving which is cut to length and the cover. The covers resist the extreme heat generated from suppressors and enable the operator to transition confidently without burning their legs, pants, or other gear. Additionally, they eliminate heat mirage on precision applications and any IR emitted in night operations. Specifications for Burn Proof Gear Suppressor Cover - Heavy: Manufacturer: Burn Proof Gear Diameter: 1.5 in Condition: New Features of Burn Proof Gear Suppressor Cover - Heavy Eliminates burns and damaged gear Full auto capable up to 1000 F Patented design ''No slip fit'' guarantee Two part system (Cover + replaceable FR Sleeving) increases product lifetime Standard heavy cover will only fit 1.5in diameter suppressors Safety disclaimer: allow the cover to cool completely once it is too hot to touch before resuming your firing schedule Package Contents: Burn Proof Gear Suppressor Cover - Heavy