The Manta Suppressor Sleeve is designed to fit suppressors that are 1.5 inches in diameter which covers most .223, .300, .308, 5.56 and 7.62 suppressors. Once installed on a suppressor that is 1.5 inches in diameter the total outside diameter with the sleeve installed will be approximately 2.25 inches. The sleeves are 7.0 inches long and weigh approximately 7 ounces. The sleeve segments can interface together to increase the length of coverage and they can be cut to length for a custom fit. The Sleeves will resist the extreme heat generated from suppressors, thus protecting operators and gear from accidental burns while helping to reduce mirage and IR signature. Sleeves will not melt! WARNING: Not recommended for use in excess of 100 rounds of cyclic or continued rapid fire. Not recommended for use in excess of 50 rounds with Titanium suppressors.