This is a Samson Manufacturing Corp. Rail known as the Evolution, model Evolution 7 EX.
The Samson Evolution EX Series is the next step forward in free-floating handguards. Being lightweight and durable allows the Samson Evolution EX 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. This is the 7" Evolution EX Evolution Rail for the AR-15. Inside diameter fits most suppressors (1.56").Includes: Thermal bushings" Two (2) 2" accessory rail kits" One (1) 4" accessory rail kit and wrenches.
Features:
Samson Evolution EX Series 7 Free-float AR-15 rail system;Relieved for most gas piston system;1913 Picatinny Mil-spec;Forms continuous top rail
