Best Barrel For DM7

[spangley_special]

i dont even look at the paint any more, just screw in a 92 and away you go

 

[Ahdinko]

I've got 2 UL backs that came with the DM I just brought, but how do I find what size they are?

I've looked all over for sizings and I cant find it. Am I just being a numpty?

 

[spangley_special]

if there is no sizing stamped on them then they are .688 (standard bore) other wise they have the bore stamped on the part that sits inside the breach