King Arms Black rain M4

King Arms Black Rain M4 Works perfectly, Used this weekend was chrono at 290 on 2.5g Nice gun and feels solid Comes with Sight, Stock and front grip (everything in the pic) details -Full CNC Machined 15” MOD Rail with CNC engraved BRO marking -Aluminium 6061 receiver with CNC engraved BRO marking. -CNC Machined one piece fluted outer barrel. -"LET IT RAIN!!” laser engraved marking Dust Cover -Laser engraved BRO marking Bolt Cover -Steel Charging Handle with CNC engraved BRO marking -The quick spring change system Ver.2 gearbox helps to replace the spring and adjust the power easily. -Mosfet assembly provides better trigger contact. -Folding rear sight & front sight