Tokarev shotguns are Turkish-made 12 and 20 gauge shotguns sold in the US under the Tokarev USA name. The brand shares nothing but a surname with Fedor Tokarev, the Soviet designer of the TT-33 pistol, so a search for "Tokarev" also turns up 7.62x25 pistols that are a different thing entirely. The line covers several mechanisms, and the model code tells you which one you are looking at. TX1, TX3 and TSP-12 are tube-fed pump guns, and the TX3 takes Mossberg 500/590 pattern stocks. TTS 12, TTF, TSA-12 and T300 A1 are tube-fed semi-autos. TAR (AR-style) and TBP (bullpup) are magazine-fed gas semi-autos that take T-1919 pattern box magazines, and the Bullpump is a magazine-fed pump bullpup. Most models use an 18.5-inch barrel and Benelli/Mobil pattern choke tubes.