His description of the video....
DESCRIPTION: The TT33 (for those who are not familiar with it) is a simplified M 1911 design. So why is it a damn Tokarev in 9x19 and not our good old .45 ? - some peope will ask. Well simply because I had two of these "guns" in stock. So I could start right off. And if something should go wrong (it didn't), breaking some of these zinc alloy parts... there was a chance for a second try. And since the Tokarev doesn't have a barrel extension that assists in feeding as most any other pistols with browning locked breech have, it is a good example for maximum feeding reliability under the worst technical conditions.
First I equipped the original oversized chamber with a steel tube insert. Machined to correct specs - new 9mm shells fall free if you turn the barrel upside down, fired brass has to be pulled out a bit. No tricks that will aid in feeding! For my german visitors: This is still the original zinc alloy dummy barrel, not bored through and not a barrel as defined by the law.
Secondly I filled the feed ramp with a steel insert. So the mouth of the chamber looks like a tube cut off straight.
As a result of this unramped barrel and using an original (unaltered) magazine the pistol won't even feed regular FMJ round nose ammo. The bullets catch against the non-existent feed ramp at the lower (6 o'clock) end of the chamber mouth. Even by increasing the angle of the mag follower I couldn't achieve any feeding at all.
So how can this doesn't-feed-anything piece be turned into a takes-no-matter-what performer? Well... watch the video.
No polishing feed ramps. No ramped chambers leaving the cartridge case unsupported in this area, possibly leading to blown or even ruptured cases. And of course no feed jams anymore, choose whatever bullet shape you want.
And in 9mm because an easy to feed bottleneck case like the original 7.62x25 would have been way to easy...
Due to several questions (thanks for your interest) - there are NO ADDITIONAL PARTS.
Looks like the barrel is pinned towards the muzzle(?)