i have a custom polarstar i had custom built and aligned by BG airsoft... My gun build list is:: -the body of the build is a Avalon -it has a purple dyetac rail purple custom/adjustable hair trigger purple grip qrs stock working dust cover V2GEN3 polarstar fusion engine vfc hopup purple IGL from amped airsoft if you would like a shooting video hmu and don’t be afraid of negotiating a price the worst i can say is No...... And i will do 800 for tank line and reg