tbf, the thing at the end is actually just a muzzle device - the barrel itself probably isn’t that thick
see for example the AK-105 or AKS-74U, they similarly have a very wide muzzle device on the end of the barrel (although the function is a bit different to the AO-46)
here’s another picture of the AO-46 - the smaller bit right at the end, at the bottom of the muzzle device, is probably closer to the thickness of the real barrel
Is that a shotgun?
No, it’s chambered in 5.45x39mm, the same caliber as the AK-74
The barrel is honkin chungus for a rifle, damn
tbf, the thing at the end is actually just a muzzle device - the barrel itself probably isn’t that thick
see for example the AK-105 or AKS-74U, they similarly have a very wide muzzle device on the end of the barrel (although the function is a bit different to the AO-46)
here’s another picture of the AO-46 - the smaller bit right at the end, at the bottom of the muzzle device, is probably closer to the thickness of the real barrel