SAS/SBS/Special Forces Pouches?

I noticed these pouches on eBay this evening. I have no idea if these particular pouches can be attributed specifically to UK special forces but the term "SAS" does seem to be used rather frequently on eBay UK.

SLR L1A1 Mag Pouches Drop Type SAS SBS Special Forces | eBay

Yes, they are theoretically an SAS issue item:

Infantry Equipment, Pattern 1958

Although no doubt many non-SAS personnel would have found reasons to acquire them.

My set here:

https://www.milsurps.com/showthread.php?t=59315