Shrink that Krink!
- Thread starter Deckard
- Start date
Clobbersauras
CGN Ultra frequent flyer
- Location
- Waaay out west.
Very interesting - looks like they used a PPS-43 mag well and mags. Once the bolt was converted it probably wasn't too hard a job to weld in the PPS-43mag well. I wonder what they did with the barrel...
Anyone want to sell me a PPS-43 parts kit and a VZ-58??
EDIT:
I need to know more.....
Anyone want to sell me a PPS-43 parts kit and a VZ-58??
EDIT:
I need to know more.....
Last edited:
TheWharGoul
CGN frequent flyer
- Location
- Thunder Bay, Ontario
I really enjoy that little thumb hole fore grip.. Even if its slightly hideous.
The bolt is not an modded AK bolt.
It is a blow-back bolt (it doesn't have bolt carrier):
The barrel on the Erie models is a PPSh barrel.
It is pressed in the existing AK trunion.
It protrudes a lot more rearward from the trunion,
in the vicinity of the front of the mag.
It uses PPS mags because lately in US they are
a lot easier to find (and cheaper) than PPSh mags.
http://www.militarygunsupply.com/shop2/index.php?main_page=product_info&products_id=198
The model with the PPS magwell welded to the receiver
is the earlier model. Erie now uses another system
to hold the PPS mag (like the model in the first pics in my last post).
They claim that the receiver is convertible
back to 7.62x39, but I'm not convinced.
In any blowback system in rifles, 7.62x25
beats the crap out of the receiver.
All AK conversions in that caliber (blowbacks)
need major mods for spring and buffer.
The 7.62x25 had large notches in the receiver (similar to a 10/22 receiver)
in order to accept the PPSh drum,
which doesn't have a neck like the AK drum has.
Those notches reduce the strength of the receiver
and they need reinforcements (braces, splints, etc.).
Have a look at previous pics in this thread to see AKs
with PPSh drums to see how they look like.
I don't know how good the VZ's worked.
Other than PPD, PPSh and PPS, I am not aware of
any blow back rifle in 7.62x25 that works good, including AR's.
7.62x25 has a terrible recoil, and is probably the only pistol cartrige
that needs a gas-op system in rifles.
For me, that was one major impediment in making an AR upper.
The second issue was finding a 10 rnds pistol mag:
http://www.canadiangunnutz.com/forum/showthread.php?t=358829
This is an AR15 in 7.62x25 with gas-op upper.
Apparently it has recoil at least as strong as a 5.56.
http://www.youtube.com/watch?v=XBR0AT3ZCGI
http://www.youtube.com/watch?v=pNH8e5h919U&feature=related
It is a blow-back bolt (it doesn't have bolt carrier):
The barrel on the Erie models is a PPSh barrel.
It is pressed in the existing AK trunion.
It protrudes a lot more rearward from the trunion,
in the vicinity of the front of the mag.
It uses PPS mags because lately in US they are
a lot easier to find (and cheaper) than PPSh mags.
http://www.militarygunsupply.com/shop2/index.php?main_page=product_info&products_id=198
The model with the PPS magwell welded to the receiver
is the earlier model. Erie now uses another system
to hold the PPS mag (like the model in the first pics in my last post).
They claim that the receiver is convertible
back to 7.62x39, but I'm not convinced.
In any blowback system in rifles, 7.62x25
beats the crap out of the receiver.
All AK conversions in that caliber (blowbacks)
need major mods for spring and buffer.
I don't have pics of those. Both were blow backs.
The 7.62x25 had large notches in the receiver (similar to a 10/22 receiver)
in order to accept the PPSh drum,
which doesn't have a neck like the AK drum has.
Those notches reduce the strength of the receiver
and they need reinforcements (braces, splints, etc.).
Have a look at previous pics in this thread to see AKs
with PPSh drums to see how they look like.
I don't know how good the VZ's worked.
Other than PPD, PPSh and PPS, I am not aware of
any blow back rifle in 7.62x25 that works good, including AR's.
7.62x25 has a terrible recoil, and is probably the only pistol cartrige
that needs a gas-op system in rifles.
For me, that was one major impediment in making an AR upper.
The second issue was finding a 10 rnds pistol mag:
http://www.canadiangunnutz.com/forum/showthread.php?t=358829
This is an AR15 in 7.62x25 with gas-op upper.
Apparently it has recoil at least as strong as a 5.56.
http://www.youtube.com/watch?v=XBR0AT3ZCGI
http://www.youtube.com/watch?v=pNH8e5h919U&feature=related
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The x25 AR-15 upper would be fun to have (Dlask go for it), but I am sure the corrosive ammo would kill it soon. Anyone comment on that?
I wonder if raising the bolt weight on a blowback would solve some problems. For instance that tube welded on top of the bolt should be solid steel. Of course, then, the spring system would have to be changed, but why not?
I also note the custom AK style bolt. The x39 has a wider diameter than the x25 and so custom parts may indeed be needed.
I wonder if raising the bolt weight on a blowback would solve some problems. For instance that tube welded on top of the bolt should be solid steel. Of course, then, the spring system would have to be changed, but why not?
I also note the custom AK style bolt. The x39 has a wider diameter than the x25 and so custom parts may indeed be needed.
Clobbersauras
CGN Ultra frequent flyer
- Location
- Waaay out west.
I don't want to hijack this thread but have you ever played with a Mec Tec CCU? I had one for a 1911 a few years ago. It was a fun little novelty and very simple in design. One could probably convert one for use with a T33 Tok given enough determination and a good barrel. Not sure how hard the round would be on the Mec Tec unit...
MecTech: I tried one of those one day at the range. The bolt is super heavy and would be well suited for the task. I suppose one would need a 9mm version and simply get a barrel made for it. Wonderful idea, really. Would the manufacturer make a Tokarev frame version? Hmmm.
Meanwhile,
Meanwhile,
Clobbersauras
CGN Ultra frequent flyer
- Location
- Waaay out west.
Clobbersauras
CGN Ultra frequent flyer
- Location
- Waaay out west.
Intersting. Lector said the same exact thing (though through a much more technical explanation) in a 7.62x25 AR thread in black rifles.
How the heck did the russians overcome this problem with their PPSH and PPS platforms? They were blow back actions. They had fairly large bolts, that was for sure. Much larger than a Mech Tech. Both were known to be extremely robust as well. Perhaps Lector could chime in and enlighten us.
Clobbersauras
CGN Ultra frequent flyer
- Location
- Waaay out west.
Ok I've done some reading...I really wish I would stop posting about things I don't know about.
Lector posts are correct (as per usual). I agree that the 7.62x25 needs to run off a gas system. There are other non gas systems, roller lock, for one, that could be used, but most of those platforms are prohib in Canada.
The Chinese Type 79 is 7.62x25 and operates using a rotating bolt and short stroke gas piston....
Note how small it is compared to the PPSH 41:
Lector posts are correct (as per usual). I agree that the 7.62x25 needs to run off a gas system. There are other non gas systems, roller lock, for one, that could be used, but most of those platforms are prohib in Canada.
The Chinese Type 79 is 7.62x25 and operates using a rotating bolt and short stroke gas piston....
Note how small it is compared to the PPSH 41:
