It's a Classic Army M15A4 with Echo 1 200% gears and piston, modify 6mm bearings, G&G V2 Metal spring guide, AMP 120 spring, Madbull 6.03 tbb, G&G hop up, G&G green bucking. Lonex nub -Fps is 400 with .2s -Price is shipped OBO -I want this gone so I’m fielding all *Airsoft related* offers -holo sight not included