Moderately interchangeable. That means you will need a gunsmith's shop to fit the heavier barrel to the rifle.
No it does not.
You can buy an original Yugo M72 RPK barrel from www.apexgunparts.com or www.centerfiresystems.com You can buy a brand new Yugo M72 RPK barrel made by Green Mountain from www.copesdist.com, but beware, the barrels are "in the white" and will need all off the pin cuts done, the gas port drilled, and the whole thing will need to be pararized or blued.
no
It will be marked on the barrel.
The country of Mozambique has a AK47 with a bayonet attached to the barrel. Here is a reference link http://en.wikipedia.org/wiki/Flag_of_Mozambique
http://www.youtube.com/watch?v=q7d8wvEKoy0
The rpk rifle was first developed in the 1950's. It was manufactured in Russia for use by the red army.
In the United States, Federal Law require a shoulder fired, rifled barrel firearm have an overall length of 26” or greater, even when a folding or collapsible stock is retracted. The minimum barrel length is 16” from breech face to crown.
revenue passeger kilometers
From AK47stuff websight-AK47 Front TrunnionAK47 Front TrunnionThis part holds the barrel to the AK47 receiver and holds the receiver together. It also helps hold the rear sight block. The two lower holes are for rivets through the receiver the hole up top is for the barrel pinOne of the parts on the 922(r) Compliant US parts count listAK47 Rear TrunnionAK47 Rear TrunnionThis part holds the AK47 receiver together as well as holds the stock in place. The rear AK47 trunnion also has a channel for the recoil assembly which locks into that channel and snaps the receiver cover in place. Pictured is a top view of a typical stamped AK47 receiver rear trunion, the two holes to the left are for the stock screws
From AK47stuff websight-AK47 Front TrunnionAK47 Front TrunnionThis part holds the barrel to the AK47 receiver and holds the receiver together. It also helps hold the rear sight block. The two lower holes are for rivets through the receiver the hole up top is for the barrel pinOne of the parts on the 922(r) Compliant US parts count listAK47 Rear TrunnionAK47 Rear TrunnionThis part holds the AK47 receiver together as well as holds the stock in place. The rear AK47 trunnion also has a channel for the recoil assembly which locks into that channel and snaps the receiver cover in place. Pictured is a top view of a typical stamped AK47 receiver rear trunion, the two holes to the left are for the stock screws
10 years for one batterie