TacFire 1" Inch Low Profile Rifle Scope Rings Heavy Duty (Two Pieces , One Pair) for Picatinny/Weaver Style Rail, T6 6061 Aluminum TacFire Official Product , 4 Screws secured, heavy duty Friendly Thumb Screws with Retention Features.Easy Installation and Secure Fit. Fits All Picatinny/Weaver Rails, Compatible with most lasers, scopes, and flashlights Fabric liner for increased friction and protection of your accessories Weight: 4 oz