Samson Evolution Keymod AR-15 Aluminum 7'' Rail Black. Being lightweight and durable allows the Samson Evolution Series to offer the perfect upgrade for 3-Gun competition shooting law enforcement and military personnel or weekend enthusiasts. Accessory picatinny rails can be added or removed at any of 7 positions around the rail and any place along the length of the tube. Rail accommodates most piston systems. Specifications for Samson KM-EVO-7 Evolution Keymod AR-15 Aluminum 7" Rail Black: Mfg Item Num: KM-EVO-7 Supplier SKU: 92446 Category: STOCKS AND FORENDS Type: Handguard Firearm Type: AR-15 Firearm Model: AR-15/M16/M4 Material: Aluminum Finish: Black Features: Stainless Steel Bushing Features of Samson KM-EVO-7 Evolution Keymod AR-15 Aluminum 7" Rail Black: Free-float Thermal bushings clip to any Mil-spec barrel nut Relieved for most gas piston systems No need to remove front sight base Rail includes integrated anti-rotation tabs 1913 Picatinny Mil-spec Precision laser engraving Forms continuous top rail The Samson KM-EVO-7 Evolution Keymod AR-15 Aluminum 7" Rail Black is a quality addition to the Samson lineup. For more great deals on AR Handguards & Forends by Samson please browse our Samson AR15 Accessories page. Samson 01-03020-01: Evolution Keymod AR-15 Aluminum 7'' Rail Black