[bearone2]

welcome from az

 

[bblr]

They both could be MIM from different manufacturers. It's hard to tell without them being removed.

 

[bblr]

 

[bblr]

MIM also has a cross piece on the bottom

 

[donreb]

Thank you bblr for the response. The desert does not have the cross piece and has 4 dots on the top, and the black does have the cross piece and no dots.

 

[bblr]

What about the opening? Do you know how to remove it to see it?

 

[donreb]

Spoke to Sig today and they told me that it is common for them to use both of these part styles based on availability. Thank you for the help