What is this (gun)
- Thread starter Rule3
- Start date
AJ
US Veteran
As chief38 stated it looks homemade. Someone with some talent made/designed it. But homemade to me. Sort of like a Zip gun.
I'm not pulling the trigger, but I'll gladly watch someone else shoot it.
AJ
US Veteran
Hey Bubba, Hold my beer and watch this..........
I have been thinking about building a small single shot and lots of thoughts go through my head.
What I notice about the contraption above.
The barrel has lugs that turn into the "receiver" lugs and when turned into the locked position the sping loaded "thumb piece slides forward and locks it in alignment. The knurling on the muzzle is to give purchase to turn the barrel. That part is very interesting. Some body racked their brain to come up with it
The trigger tube must be a hollow with a coil spring in it that compresses when you pull back on the firing pin, similar in a way to the arrangement in a Mauser bolt. The guy even put a little toggle on the firing pin to give better purchase to cock it. All interesting in that it helps keep it keeps the firing mechanism pretty compact.
The little lever with that has the set screw coming up from the piece in the grip must be the sear that engages the spring loaded firing pin and the set screw allows adjustment. The trigger then simply bumps the sear down and the pin is released.
I kind of like it, Some real engineering went into it. Like John Browning the guy that figured it out never took a single college class. He just used his brain.
I would fire it with something like 22lr 32 S&W or the like. Those locking lugs on the frame and barrel would not shear off very easily
The long piece with the bent tip that must pivot along the side must be used to to extract the fired case once barrel is removed
I keep thinking an interesting way to go would be a falling block similar to a Stevens Favorite. Except do a 2 piece receiver, so you could machine the inside cuts easier, then use the screws for hammer and trigger along with some alignment pins to hold the 2 halves together, but a simple bolt design with the firing pin, spring, extractor and a lug is really hard to beat.
To me the simplest thing to do would be a no lock up, heavy bolt, fixed firing pin, blow back operated 22 lr sub machine gun that fired from an open breach.
A round receiver body, with a piece of round stock that just slid inside it, The round stock is partially hollow for a spring to collapse inside and has a tit on the face for a firing pin. The right side has a pivoting extractor hook and the left a groove that goes to the edge or where the case rim would be. The tube has a rail that matches the groove, this keeps the "bolt" orientated and when the rim head the leading face of the rail it causes ejection from extractor hook. The trigger spring loaded with a pivot and hook to release the bolt from the open position.
Once you had the spring and bolt weigth figured out right for the round it should work
Pull trigger, bolt travels forward stripping a round, slams it into chamber and its firing pin tit mashes prime, bang, bullet is fired and case slams against much heavier spring loaded bolt and blows it back, extractor hook drags case back and when rim opposite the hook hits the rail it is kicked sideways and out as port. As the trigger has no dis-connector and is still pulled the bolt slams back forward stripping another round and bag, This would continue until trigger was release to grab the bolt or it was out of ammo
Unfortunately the ATF would really frown on me trying to satisfy my curiosity
What I notice about the contraption above.
The barrel has lugs that turn into the "receiver" lugs and when turned into the locked position the sping loaded "thumb piece slides forward and locks it in alignment. The knurling on the muzzle is to give purchase to turn the barrel. That part is very interesting. Some body racked their brain to come up with it
The trigger tube must be a hollow with a coil spring in it that compresses when you pull back on the firing pin, similar in a way to the arrangement in a Mauser bolt. The guy even put a little toggle on the firing pin to give better purchase to cock it. All interesting in that it helps keep it keeps the firing mechanism pretty compact.
The little lever with that has the set screw coming up from the piece in the grip must be the sear that engages the spring loaded firing pin and the set screw allows adjustment. The trigger then simply bumps the sear down and the pin is released.
I kind of like it, Some real engineering went into it. Like John Browning the guy that figured it out never took a single college class. He just used his brain.
I would fire it with something like 22lr 32 S&W or the like. Those locking lugs on the frame and barrel would not shear off very easily
The long piece with the bent tip that must pivot along the side must be used to to extract the fired case once barrel is removed
I keep thinking an interesting way to go would be a falling block similar to a Stevens Favorite. Except do a 2 piece receiver, so you could machine the inside cuts easier, then use the screws for hammer and trigger along with some alignment pins to hold the 2 halves together, but a simple bolt design with the firing pin, spring, extractor and a lug is really hard to beat.
To me the simplest thing to do would be a no lock up, heavy bolt, fixed firing pin, blow back operated 22 lr sub machine gun that fired from an open breach.
A round receiver body, with a piece of round stock that just slid inside it, The round stock is partially hollow for a spring to collapse inside and has a tit on the face for a firing pin. The right side has a pivoting extractor hook and the left a groove that goes to the edge or where the case rim would be. The tube has a rail that matches the groove, this keeps the "bolt" orientated and when the rim head the leading face of the rail it causes ejection from extractor hook. The trigger spring loaded with a pivot and hook to release the bolt from the open position.
Once you had the spring and bolt weigth figured out right for the round it should work
Pull trigger, bolt travels forward stripping a round, slams it into chamber and its firing pin tit mashes prime, bang, bullet is fired and case slams against much heavier spring loaded bolt and blows it back, extractor hook drags case back and when rim opposite the hook hits the rail it is kicked sideways and out as port. As the trigger has no dis-connector and is still pulled the bolt slams back forward stripping another round and bag, This would continue until trigger was release to grab the bolt or it was out of ammo
Unfortunately the ATF would really frown on me trying to satisfy my curiosity
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If I figure it right, you detach the bbl, drop a round into it, then you'd likely have to cock the striker first to get the FP back out of the breech face.
Then pull the serrated block back against it's coil spring and at the same time place the bbl in place on the frame and rotate it into position. The lugs on the bbl locking into the frame. The spring loaded locking block (serrated side(s) pushes back to secure it.
The Ring forward on the bbl holds a small lug that fits into the frame. It looks like the placement of that ring /lug is adj with a simple set screw w/ small wing instead of a slot.
The knurling on the muzzle end of the bbl eases the rotational placement and dismounting needs of the bbl.
But,,in doing this loading routine,,the pistol is cocked (my assumption above) to pull the FP back out of the breech face. Otherwise the bbl w/ cartridge wouldn't slide into position as the bbl was rotated.
The handler's hand is over or quite close to both the muzzle and the trigger doing all this re-assembly with a loaded round.
The only way to make the system SAFE in this process may be that
thin metal Bar they have mounted on the right side of the frame.
This may be the Safety.
It looks like it has a small hook on the extreme back end of it. The Bar itself may snap down and block the Striker from falling all the way down.
That would allow for safe (re)loading (and carry!)
To fire the gun, that Bar (Safety) would have to be manualy lifted at the back end (being it's own spring) and swiveled downward and dropped into position on the frame under the Knuckle of the frame.
There it would be out of the way and not block the Striker/Hammer from a complete fall to fire the cartridge.
Just all thoughts & guesses of course..
You can see the Sear and it's small coil spring just under the frame cut on in the pic of the right side with the grip removed. The dovetailed into place bar serves as the support for the Sear and Spring as well as an attachment place for the upper grip screw.
I think the Swivel on the hammer/striker was added after it was first built as it was needed to more easily pull the striker to the rear and cock the pistol.
I would guess a smooth bore, but maybe the bbl was made from a cut off from another rifle or pistol bbl.
Some interesting work to make the little gun. Design is different that's for sure.
There's a lot of unique & interesting stuff out there.
Then pull the serrated block back against it's coil spring and at the same time place the bbl in place on the frame and rotate it into position. The lugs on the bbl locking into the frame. The spring loaded locking block (serrated side(s) pushes back to secure it.
The Ring forward on the bbl holds a small lug that fits into the frame. It looks like the placement of that ring /lug is adj with a simple set screw w/ small wing instead of a slot.
The knurling on the muzzle end of the bbl eases the rotational placement and dismounting needs of the bbl.
But,,in doing this loading routine,,the pistol is cocked (my assumption above) to pull the FP back out of the breech face. Otherwise the bbl w/ cartridge wouldn't slide into position as the bbl was rotated.
The handler's hand is over or quite close to both the muzzle and the trigger doing all this re-assembly with a loaded round.
The only way to make the system SAFE in this process may be that
thin metal Bar they have mounted on the right side of the frame.
This may be the Safety.
It looks like it has a small hook on the extreme back end of it. The Bar itself may snap down and block the Striker from falling all the way down.
That would allow for safe (re)loading (and carry!)
To fire the gun, that Bar (Safety) would have to be manualy lifted at the back end (being it's own spring) and swiveled downward and dropped into position on the frame under the Knuckle of the frame.
There it would be out of the way and not block the Striker/Hammer from a complete fall to fire the cartridge.
Just all thoughts & guesses of course..
You can see the Sear and it's small coil spring just under the frame cut on in the pic of the right side with the grip removed. The dovetailed into place bar serves as the support for the Sear and Spring as well as an attachment place for the upper grip screw.
I think the Swivel on the hammer/striker was added after it was first built as it was needed to more easily pull the striker to the rear and cock the pistol.
I would guess a smooth bore, but maybe the bbl was made from a cut off from another rifle or pistol bbl.
Some interesting work to make the little gun. Design is different that's for sure.
There's a lot of unique & interesting stuff out there.
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AJ
US Veteran
jimbo728
Member
Looks like the WW2 Liberator.
Jim
Jim
I bet the ATF would be interested.
I'll bet it's older than the ATF. It has a European look to it, if that makes any sense. Or maybe the Khyber Pass.
What is it? I have NO idea. But it's interesting.
Oil Field Trash
Member
An interesting paperweight at best.
No doubt it was hand made but is several clicks above Zip Gun Category.
Everything starts out "hand made" before it is refined and machinery is tooled up for production. As overbuilt as it appears I would guess industrial application. Perhaps some type of engine starter?
Everything starts out "hand made" before it is refined and machinery is tooled up for production. As overbuilt as it appears I would guess industrial application. Perhaps some type of engine starter?
