Alexander, unfortunately Buds does not have an eta. I would check on large gun and accessory sites like (6)un (8)roker and Guns International as discontinued and hard to find firearms and accessories show up for sale by private individuals and small shops. Just replace (6) & (8) with G & B. --------------- gunsinternational.com/

Buds doesn't really know when they'll get items back in stock. You can hit the notify me when available button and buds will send you an email when it becomes available. If you don't want to wait I'd check gunbr0ker, they're a site that allows private owners and small shops to sell their products so they usually have rare and hard to find firearms and accessories. Hope this helps.

Buds doesn't get ETAs on when items will be back in stock, your best bet is to hit the notify me when available button to receive an email when they come back in.
Or here is a filtered list of currently in stock AR Type pistols at Buds.
budsgunshop.com/search.php/type/Handguns/other/in_stock/caliber/10000601