Samson M-LOK Hand Stop/Barricade Stabilizer Black. It features aggressive waffle cuts for gripping barricade surfaces. Used as a hand stop it keeps your hand from moving forward of the handguard for safety with short barreled rifles. Includes: Hand Stop/Barricade Stabilizer and mounting hardware Features: Ergonomic design for comfort Knurled face for gripping barricade surfaces Install face forward for hand stop & barricade use Install face rearward for repeatable index point Two M-LOK mounting screws for strength Specifications for Samson M-LOK Hand Stop/Barricade Stabilizer: Manufacturer: Samson Color: Black Condition: New Package Contents: Samson M-LOK Hand Stop/Barricade Stabilizer Samson 04-01021-01: M-LOK Hand Stop/Barricade Stabilizer Black