- Samson Evolution EX Series 9" Free-float AR-15 rail system
- Relieved for most gas piston system
- 1913 Picatinny Mil-spec
- Forms continuous top rail
Here is the perfect upgrade for any modern sporting rifle. Ideal for 3-gun shooters, LE/military or just the weekend enthusiast, the Evolution Series 9 free floating rail system is the next step forward. This lightweight AR-15 handguard has a full length Mil-Std 1913 Picatinny top rail, and includes 2" and 4" rail kits that can be installed at any of seven different positions around the tube, and anywhere along it. It includes thermal bushings to clip to any Mil-spec barrel nut (not included).