Custom Polarstar F2 M4

For sale is my Custom Polarstar F2 M4. It’s been my project gun for half a year now but I would like to sell it and get something a bit simpler. Has a small issue with air seal but should be an easy fix for anyone with experience working on HPA Has a few other quarks but nothing major. Can provide more detail on request. Part List: Polarstar F2 Spike Speed trigger Ares hop unit Mr hop 70 bucking maple leaf 6.02 290mm inner barrel vertical grip Dytac SMR MKIV Rail Generic Suppressor Delta Armouries metal receiver Amped IGL Paypal G&S only £350 but open to offers