what does *build stock* mean?

[djprawn]

What does the term *build stock* mean when it appears on a product listed on the overclockers website?
Cheers in advance

 

[djprawn]

https://www.overclockers.co.uk/ocuk...pc-configurator-fs-01x-tl.html#t=a?e1f6g2m4D+

When you select graphics cards it says Gigabyte *Build Stock* GeForce RTX 3070 Gaming OC 8GB GDDR6 Graphics Card

 

[djprawn]

ah ok so kinda reserved stock for custom pcs?