Not so important, but curious anyway.......

slide was made then new A1 frames came out. steyr didnt want to remove the finish etch/stamp the new A1 into the slide and refinish.
kinda process that cost money and time.

 

Slide markings

Don't think there were any changes to the slide assembly.

Dag

 

I purchased an M9-A1 in early June from CDNN.

My slide says "M9-A1" not just "M9"...


:roll:

 

The ones that DON'T say A1 will be a collector's items. That's just my prediction.

 

I am getting a M40 A1 in the next few days..

So far I have:

M40

S40

M9 A1

S9

My collection is nearly complete!

 

I would call the ones without an A , a transitional gun.

Second generation frame with M slide.

There really isn't any difference between the slides other than the markings.