Hello! I am selling a Brand New Mk18 Polarstar Jack! Parts List: Specna Arms Helios Daniel Defense Mk18 Metal Handguard with markings Polarstar Jack Polarstar FCU (can upgrade to gate Gate Titan II) Cyma Hopup Rotary Maple Leaf Super Hop 70 Degree 6.03 Inner Attachments are not Included. 60 Day Warranty