How old is your mag?

[Jdogg]

How can i tell how old my mag is? i know the SN and is register with AGD but i want to know when it was made and if i will need to get it changed to have the ULE fit. I know it is a older one.

[Dayspring]

Easiest way to tell if the ULT will fit.

Take the valve out. Take out the brass on/off assembly on the bottom of the valve. Look inside. If you see 1 oring, it won't work. If you see 2, it will.

And you want to have a ReTro/Xvalve for it. Classics will work, but not without shortstroking problems.

[DWOOD]

i have a automag with RT valve and i want a ULE body.

theres on o-ring on the top of the on/off inside. will it still work

[Dayspring]

ULE body is different. The oring thing has nothing to do with it.

The ULE body will fit everything except the classic RT (the one where the body covers the valve & has holes in the front kinda like a minimag)