I bought this new from Modern Airsoft about a year ago. Shot great out of the box. I am selling because I am converting to an HPA system and need the money. I still upgraded quite a few things(professionally isntalled). Below is the breakdown. - Krytac Trident SPR MKII new $355 -Obviously the paintjob is custom $10 -Echo 1 Red motor $50 -Wired via DEANS $10 -GATE WARFET installed with programming card $80 -Keymod front rail foregrip $20 -4X Acog scope(has 3 color selection for optics) $50 -B&T Mock Suppressor Tracer Unit by ASG $50 -SHS trigger contacts $15 -16AWG wire $5 -Comes with the Krytac High cap and 2 KWA mid caps $20 -SHS blue piston $10 -SHS Cylinder Head $5 -AOLS 8 port piston Aluminum head $10 -AOE correction with sorbo $5 -SHS metal double O-ring air nozzle -$10 -Newly maintained and greased by professional tech -Comes with M120 Krytac spring installed(Will shoot 400ish with .20 BBs) -M140 Mad bull spring (Will shoot 355 fps with .36 BBs) $12 -Will include a PTS motor grip(not shown in pictures), it's being shipped to me as I post this.. $25 Total spent was $742 plus $150 in tech fees. But I will sell for $499 with shipping or best offer. I also have a prommy rhop 416mm barrel by HOPSYSTEMS($135) which also has a flat krytac orange bucking with it.I will ship within continental US only.