IZH MP-656K or TT33 BB pistol – Part 2
by B.B. Pelletier
Pyramyd Air’s 3rd annual airgun garage sale is on June 5 from 10 am to 3 pm. There will be discontinued, blemished and used guns, scopes and other accessories — plus dented tins of pellets. John Goff from Crosman will be flipping burgers, and Pyramyd Air’s technicians will be on hand to help with any questions you might have. Come early for the best selection!
Correction: There’s an error in part 3 of the 655K blog, where we state that it has blowback. It does not! We’ve corrected the blog. There was a miscommunication, as we state quite clearly in the part 1 that it the gun doesn’t have blowblack. Sorry!
I told you in part 1 that the TT33 was so unique and remarkable that it was going to take two reports just to cover the basic gun. This is the second report. First, I’d like to show you something from the firearm.
The Tokarev, which is what this is called, is a novel pistol that borrows from John Browning’s 1911 but also incorporates its own unique design. The action lifts out of the receiver as a module.
Not all parts were used
When they built the BB pistol, not all the Tokarev firearm parts were necessary. Since no metallic cartridges were used, the extractor and ejector were never required. With typical Russian economy, they simply left them off the gun. So, when you take your TT33 out of the box, don’t be shocked to find some parts missing from your gun.
Another area we’ll look at is the BB and CO2 magazine. It’s similar to other BB gun magazines that also contain the CO2 cartridge. But there’s one surprising difference.
So, what’s this big surprise? Look carefully at the top of the BB magazine, and you’ll see dovetail slots. When you insert the magazine, those slots interface with the rear of the barrel, aligning the BBs in the magazine with the BB barrel.
The barrel installation is an extremely clever step and worthy of any advanced airgun collector’s attention if fine design is of interest.
Gas sealing by a special seal
To seal the rear of the BB gun barrel against the BB gun magazine, which contains the firing valve, the engineers designed a very special o-ring. It has a flange that spreads and digs into a groove cut in the rear of the barrel. This isn’t something you can buy at a hardware store.
The sights were modified by milling down both front and rear sights to match the BB trajectory at close range. When we test for accuracy, we’ll see how close they got it.
That ends our general tour, and I think you’ll have to agree that the TT33 or Tokarev pistol is unique. If you’re a serious BB pistol collector, this is one to get. Next, we’ll look at velocity.