First Strike FSC Carbine Rail Kit carts replacing them with a purely

replacing them with a purely mechanical control system featuring a cam-actuated pilot valve

- Perfect Entry Level AEG for Younger User

this one includes all the mods so that your new X7 will look as shown in the photo

It has both the low and high pressure burst disks on the regulator

First Strike FSC Carbine Rail Kit carts replacing them with a purelyThe First Strike FSC Carbine Rail Kit brings a whole new level of customization to the table for the FSC. This kit will mount to your FSC giving you a top rail that runs the entire length of your pistol and allows you to add your favorite free float handguard to your pistol turning it into a longer range carbine system. Features: Durable aluminum constructions with black finish Adds full length top picatinny rails Fits directly on the FSC No