Hi Jermaine, yes this will work with your panzer arms semi auto shotgun.
Stay safe & have a great day!

Yes, it will work.

Yes, it will fit & function properly.

Good evening to you!! Yes you can use the Panzer Arms AR-12 12 Gauge 20 Round Drum in your Panzer arms M12 shotgun with no problems. Hope this helps. Have a good rest of your day.
🇺🇸🇺🇸 'merica' 🇺🇸🇺🇸

Hi Jamaine and welcome. Yes Sir you can. Also, a super reliable 20rd drum is the Black River: -- budsgunshop.com/product_info.php/products_id/145716/typhoon+defense+brdmbk02+drum+magazine+black+%26+red+20rd+12+ga+for+typhoon+defense+x12+f12 -- Cheers, stay safe and enjoy!

Hello Jamaine, Yes the Mag12 can accept all standard FR-99 or AR-12 style magazines and drums. Hope this helps and have a great day!