Gen 3 slide with no sai markings - Salient Arms International Tamography G19 Stripped Slide

Just a word of caution for anyone considering this slide. Although the listing says it is Gen 3, 4 and 5. This is a GEN 3 Slide w/ dual slide catch notches.
The Gen 5 Safety Plunger will not fit (uses a Gen 3) and it requires a Gen 3 Recoil spring / adapter plate for proper fit in a Gen 4 or Gen 5 Frame.
The milling is pretty good however there are some rough / sharp edges. The design and finish are well done & I loved the Dark Grey TI finish.
It did come with a channel liner pre-installed.
That said I have owned Salient Arms International (SAI) Glocks in the past and I doubt this is an actual SAI manufactured part.
1 - There are NO marking of any kind on this slide and SAI always marked their name / logo in their products.
2 - This design is FAR different from any other slide design I have ever seen from them.
3 - This milling work on this slide is not nearly as clean as SAI's
3 - No paperwork of any kind is included in with this slide.
I purchased this on "Sale" at $345 and without SAI markings, that was too much.
All in all, this is a nice looking Gen 3 Slide of questionable origin at an inflated price.

I'm a big fan or Optics Planet and have never had a suspect item like this before. I will take advantage of OP's fantastic customer service and send this back.