G&P do make an A2 and you can buy the receiver on it's own but you are looking at least £100.00 if you can find one in Stock. Google is your friend.
Thanks for the reply everyone, got myself an A1 reciever which makes it kind of an ar15a2.
The only problem is that I can’t get the barrel nut off the old upper receiver, even with the ar15 wrench and the help of a friend. I’m turning it the right way, but due to the pressure, the old upper (which I don’t plan on using anymore) had bent and snapped in some areas.
Is there any other way to easily remove a barrel nut, even if it means breaking the upper receiver?View attachment 40188