This new JTS M12AK is a semi auto mag fed AK47 that shoots 12 gauge.  It comes with two 5 round magazines ,18.5" choked barrel (takes Remington chokes) , adjustable gas for heavy/light loads, and adjustable sights with optic rail. Insured shipping is $55.00 to the continental U.S. where allowed and no card fees added at Deals on Guns.
JTS website; 

Semi-Auto Shotgun

12 GA
Shoots 2 ¾”and 3”shells
Picatinny Rail
Chrome lined barrel
4-Position gas system for adjustments based on loads
Fits Rem Choke tubes
Comes with two 5 round magazines
Barrel Length: 18.7”
Overall Length: 39.37”