Question about G&P Metal upper

[Mindspeed]

Can anyone tell me if a Madbull outer barrel will fit a G&P metal upper?
I tried a VFC outer barrel and it won't fit. Was thinking about getting
http://www.evike.com/product_info.php?products_id=39555
or the the 14.5 inch one.


Thanks!

[AirsoftoutletNW]

They should fit. We have installed them before.

If you're in OR, come check out the barrels and avoid shipping.