Hexmag Slim Line 18-Slot LowPro Rail Covers 3 Pack Black Small. But the industry has never seen anything like SENTRYs Picatinny rail covers. SENTRYs Hexture design pattern makes these some of the best Picatinny rail covers on the market. Not only does SENTRYs aesthetics set your platform apart they get the job of protecting you and your gear Live To Protect. Specifications for Hexmag Slim Line 18-Slot LowPro Rail Covers 3 Pack AR15 Accessories: Product Size: Small Features of Hexmag Slim Line 18-Slot LowPro Rail Covers 3 Pack AR15 Accessories Spans 18 picatinny slots (7 inches) for convenient scope placement depending on rail length Available in Black or FDE Molded rubber grip with the iconic SENTRY Hexture design pattern for increased grip Perfect for those that have a quad picatinny rail setups on their AR's Package Contents: Hexmag Slim Line 18-Slot LowPro Rail Covers 3 Pack AR15 Accessories The 1913 Picatinny rail has long been the go-to standard for mounting optics and accessories. But the industry has never seen anything like SENTRYs Picatinny rail covers. SENTRYs Hexture design pattern makes these some of the best Picatinny rail covers on the market. Not only does SENTRYs aesthetics set your platform apart they get the job of protecting you and your gear Live To Protect. Features/Specifications: Spans 18 picatinny slots (7 inches) for convenient scope placement depending on rail lengthAvailable in Black or FDEMolded rubber grip with the iconic SENTRY Hexture design pattern for increased gripPerfect for those that have a quad picatinny rail setups on their AR's