Is a G&G EBB M4 upper special?

[harryxcallahan]

Over the weekend at OP: Wounded Wing I fell on my M4 and sadly broke the upper receiver and hop-up. I would like to know if the G&G EBB M4 upper is anything special or if any G&G M4 upper will work on it. i would like to get a metal upper and lower for it now. If anybody can shed any light on my current situation it would be much appreciated.

[MayhemXXXFrosty (AndrewMp5k)]

I'm guessing so, since the NBB version doesn't work for the EBB version. The only thing is they don't carry a metal lower it seems, odd. I don't believe you can use your ABS lower as well (there's a comment in the EBB version that says the metal upper doesn't fit the ABS lower).

Besides those statistics, I can't say if a different metal body could work or anything.

[snafu]

I've heard good things about the madbull receiver and hopup combos. A buddy of mine won a plastic g&g in a mystery box and replaced the body with the madbull noveske one. The cool thing is they have lots of different trademarks and they include a madbull hopup unit(which are pretty dang good).

shop.ehobbyasia.com/accessories/metal-body/aeg-metal-body/madbull-spike-s-tactical-m4-aeg-metal-body-ver-2-with-ultimate-hop-up-unit.html#.UrETX_RDttw

[Maverick]

The G&G EBB receiver has more room at the top underneath the rail to accommodate the EBB system. A NBB body, or a generic m4 body will not fit. G&G makes a metal receiver kit for their EBB system, and I have seen it for sale on ASGI.

[ctres]

I'm sure you could also remove the ebb unit if you felt like it, then you would have a lot more choices in what receivers you use.

[Maverick]

You could remove the EBB, which involves opening the GB, replacing the cylinder with one that does not have a hole for the EBB, and cutting a notch in the rear of the new cylinder due to gearbox features. You would also have to rig up a custom charging handle as the EBB assembly is what holds the charging handle.

[ctres]

Well if he were getting a new receiver the charging handle and accessories are usually included so that shouldn't be an issue. Opening up the gearbox may or may not be an issue though. I don't have any experience with G&Gs but I just wanted to make him aware of his options.