1.Compatible with Flywheel Cage Storage Extend Barrel Kits.
2.The copper nut inserted into the main body to make the rails more stable.
3.Install the top and bottom Picatinny rails on you blaster which allow you attach some accessories on that.Such as sight, tactical flashlight, etc
5.Blaster and Flywheel kits not included!
Model:Top and Bottom Picatinny Rails
Process: 3D printed
Product Size: 120*170mm
1 x Top Rail
1 x Bottom Rails