Matrix Adjustable PDW Style Stock for MP5K Airsoft AEG Submachine Guns (Model: Standard)

"So i decided to take a gamble with this stock when my Elite Force MP5 retractable stock broke

Mind you, this item's title states that it is intended for an MP5K model, however due to the shape of the "front" part that goes into the upper receiver, it should be compatible with a regular MP5 (and not the MP5K version which has a different upper receiver)

It is not 100% compatible with the Elite Force MP5, i had to sand down a few millimeters of plastic from the receiver (both upper and lower) to get it to fit, and it does, and it looks awesome!

Second issue i have is that the Pin that is supposed to hold the stock in place doesn't do it properly due to the different shape of the pin holes, so i had to replace it with a different pin. (not the stocks fault thou)

Besides that, the shoulder panel is plastic, the rest is just solid metal (mind you i got the standard model)

The item's description also states that it can fit batteries, from my observations this is not true.
I cant open the cylinder part of the stock to fit the battery, it seems to be just one solid piece of metal
even if i could it doesnt have enough room for a regular battery, a small long LiPo bat, could fit in however.

overall its a quality item, solid construction, but be aware that you may need to modify your MP5 to fit it.