This is a G&G CM16 Raider 2.0 AEG rifle at base upgraded with the following parts 

• Gate Eon Complete V2 Gearbox (including Gate Titan MOSFET and new trigger)
• Upgraded to accept deans-type battery connector (runs 11.1v lipos)
• ASG Infinity U-30000 Motor
• An upgraded Gate hop-up unit
• Angled Foregrip
• Reflex sight
• Mount for a flashlight
• MLOK to Picatinny conversion parts installed
• 4x G&G 120rnd Mid-Cap magazines
• The original gearbox parts and broken original magazine will be included in a bag if these are of any use to you as spares.

Faults:

• Only serious fault is that the fire selector doesn't fully turn with the Gate Eon Gearbox but all 3 fire modes can be selected. If safe is 9 o'clock, semi is 12 o'clock, it probably stops at about 2 o'clock for full auto rather than 3, but you might be able to fix this. The fourth image shows what I mean.
• The mock charging handle didn't fit with the gearbox so I've taken it out and included it. 
• The dust cover/mock ejection port spring was lost so is permenantly open. These can be replaced, though, quite common on AR-15 guns to have this happen unfortunately.