Walther Forums banner

1 - 1 of 1 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 ·
I have a 4" 9mm PPQ M1 from several years ago (date code BE). Recently, I got a Q4 TAC upper (date code BI). As I was playing with these barrels and slides, I noticed they are slightly different for M1 and Q4 TAC. See the area circled in red in the two pictures below. The M1 slide and barrel have a straight, 90deg edge, while the Q4 slide and barrel have a curved edge.



It's obvious that the M1 barrel would not fit the Q4 slide. The curved edge in the slide prevents the barrel from going all the way in and down. But it seems the Q4 barrel may still fit the M1 slide. It goes all the way in and drops down. Can anyone confirm whether the 4.6" threaded Q4 barrel would function with the older M1 slide? If not, is there any easy fix for this?
Thanks.
 
1 - 1 of 1 Posts
Top