I have one of these:

https://a3tactical.com/stribog-lower-receiver

According to the website:

This is an all new lower receiver for the Grand Power Stribog, designed to use the popular and well established AR fire control group and grips. These AR features bring almost limitless possibilities to your Stribog platform, allowing the user to customize the Stribog to suit their individual tastes and shooting preferences.

Additionally, this receiver uses the popular CZ Scorpion magazine instead of the OE Stribog magazine. The improved magwell angle and curved magazine has an inherent advantage over straight mags and has been proven to provide more consistent feeding, as well as better tolerance to various brands/types of ammo.

It's cool, but I managed to get a stack of the Stribog mags when they were on sale at Global Ordnance...

So if you have a Stribog and you're the first one to post "I'll take it!" then you'll be the proud owner of a A3 Tactical Stribog CZ Lower.

I'll take it. I love shooting my Stribog and I still have a bunch of Scorpion magazines leftover from when I sold my CZ.

All yours! Email inbound, should ship Friday with all the other gear on my great big winter closeout sale.