ARP9 CQB Polarstar HPA This ARP9 CQB build is tuned for tight indoor play—5in barrel & PDW stock. The compact front end keeps it snappy while the PDW-style package stays light and maneuverable. Part of KA Tech’s Liquidation Sale: professionally built rifles with brand new HPA engines and refurbished bodies. If you'd like to upgrade the hop-up, bucking, inner barrel, trigger, or IGL, we can do that before shipping the rifle. All rifles come as shown. FCU, battery, airtank, regulator, airline, and magazines are sold separately. $450 polarstars Kythera $500 Polarstar Jack $600 Polarstar F2 $700 Polarstars FE