Recently pre-ordered an SKO-12 from Standard Manufacturing which is a subsidiary of Standard Shotgun.
Standard is well known for well built over and unders as well as the DP-12
In my opinion they have not put out enough info out on the SKO-12 and SKO BULL
So I called them twice and was finally able to the shop supervisor in charge of the fabrication work
First off he was Russian with a thick accent
That gave me hope right off the bat that the SKO's were in good hands as I love my VEPR12
I asked him a few questions that slot of us just weren't sure about
So first off the shotgun will accept and cycle 3" not just 2 3/4"
It will accept any MKA1919 magazine
We knew they were making their own mags but he informed they were also working on a drum mag
I haven't done a lot of research but this may be the first 1919 drum?
Cycles well with any of your favorite gun oils, just not grease
Any questions you guys have I'll do my best to pass along to him
>tl:dr Standard smuggled in ruskies to build their SKO's
Sorry about some of the typos/ word correction
Posted on my phone