1911 barrle markeings help?

[badboybeeson]

i have a 40 S&W barrle thats in a caspian slide
the only marking on the barrle are SLM 40cal
anyone know who this is?
bbb

 

[reddot]

I believe SLM is Storm Lake Machine.

 

[badboybeeson]

thanks
simon