The BPG Suppressor Cover Heavy is designed to fit suppressors that are 1.5 inches in diameter and are made to fit your specific supressor 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 1000deg 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 2000deg 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. 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. The Burn Proof Gear suppressor covers withstand the most rigorous abuse, are combat proven, Made in the USA, and are lifetime guaranteed.Features:Eliminates burns and damaged gear.Full Auto Capable up to 1000deg F.Made in USA with fully FR Materials.Patented Design."No slip fit" Guarantee.Two part system (Cover + replaceable FR Sleeving) increases product lifetime.Suppressor Cover - Heavy - (Fits 1.5" Diameter Suppressors).Covers are designed to be 0.5 inches longer than the suppressor itself.*Please Note:Outer layer Kevlar Fabric (Black, Flat Dark Earth, and Wheat Tan) is rated to 1000deg F.Suppressor cover in Gray or Multicam is rated to 600deg F max temp (not full-auto rated).Inner material is high temp silica rated to 2000deg F.Safety Disclaimer: allow the cover to cool completely once it is too hot to touch before resuming your firing schedule.Specs:Suppressor Cover Lenghts: 5.5", 6", 6.5", 7", 7.5", 8", 8.5", 9", 9.5"Diameter : 1.5"