KWA ATP-GT Glock 17 trainer. Fits all standard Glock 17 holsters, and the rail is fully functional. Green gas; full weight. I used this as a 1:1 analogue for my G47/DPP gun I shoot USPSA Carry Optics with. 

Optic is a Sig Romeo 1 3 MOA, and that included optic plate is multi-fit for virtually every RDS footprint on the market, save for an Acro channel. 

Comes with a half-full bottle of KWA green gas, and a nearly full jug of .25g BBs.