1919 A4 Forums banner

1 - 4 of 4 Posts

·
Registered
Joined
·
311 Posts
Discussion Starter #1
Does anyone make a big hole (flattop, m4) upper? For SP1
I have 2 big hole registered lowers and I hate that pesky little off-set front pivot pin

Or a recommended machine shop I could send 4-5 (regular) striped uppers to and have them milled out????
Or just shut up and shoot them!!!
 

·
Registered
Joined
·
499 Posts
I was always told never to modify the receivers but, instead modify the uppers to work. It might be different were it Steel however, you are talking about alloyed aluminum. Not a good idea. Just shoot it. LOL

Frank
 
1 - 4 of 4 Posts
Top