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For: * Discontinued * G&G MRE Style Upper Receiver & RIS for G4/CM M4 Blowback (Black)Product Information:
Very nice upper receiver...using it on my G4-A3. put the madbull blackside barrel extension on and im gonna put a 509 6.01 barrel in it.
Fits a 363mm barrel with no extension
& sights (back it removeable I believe the front one is too if i rly want it off)
flash hider is removeable
Realism factor because it has a gas rod.
Flash hider is a b**ch and a half to get off.
I had to get a pot of boiling water and dip the flash hider in for 5 minutes. then i got two rubber grippers. (one for the flash hider and one to hold the barrel so i didnt twist it) and a pipe wrench. I had to hulk on the thing to get the glue to break.