Hexmag AR15 7 Slot KeyMod Wedge-LOK Cover 4 Pack FDE Small. A nicked or dinged gun rail can create an inconsistent mounting surface for your optics and the rails themselves can be sharp. So protect yourself and your gear with SENTRY's low-profile rail covers available for M-Lok KeyMod and Picatinny rail systems in a high-performance non-slip design. They look amazing function better than others on the market and complete your rifles ability to get the job done. SENTRY Keymod rail covers use the patented Wedgelok technology to hold it securely to your hand-guard. When installing simply press each section firmly into each Keymod slot. Once the Wedgelok is in place it will expand and lock in behind the hand-guard. Specifications for Hexmag 7 Slot KeyMod Wedge-LOK Cover 4 Pack AR15 Accessories: Product Size: Small Features of Hexmag 7 Slot KeyMod Wedge-LOK Cover 4 Pack AR15 Accessories Spans 7 KeyMod slots for convenient installation and can be cut down for shorter lengths to fit around optics or hand stops. Package Contents: Hexmag AR15 7 Slot KeyMod Wedge-LOK Cover Hexmag HX-KMC-4PK-FDE: AR15 7 Slot KeyMod Wedge-LOK Cover 4 Pack FDE Small