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It has begun!
First, a refresher. The parts I ordered...
A WWII British Sten MKII submachine gun de-milled to ATF standards. Receiver is torch cut. This means it is just parts, and can legally be shipped to my house.
A 16" 9mm barrel. I ordered my parts kit without the original 9" barrel as that would be illegal to use without a tax stamp for an SBR build.
A new 80% (or less) receiver, which is an ATF approved design because it has a smaller inside diameter and CANNOT accept a full auto bolt.
A new semi-auto bolt, which uses an AR-15 firing pin. It includes a new spring kit and associated parts.
All parts are able to be shipped to my house.
I am going to be using my neighbors Bridgeport. I have been waiting patiently for him to acquire more endmills for it, but while I wait for the rest to arrive, I decided to get the rest of the de-milling of the old receiver done today. This involves cutting and breaking weld spots on what's left of the old receiver so that the rest of the parts can be removed and used on the new receiver.
This is the rear portion of the old receiver, and there were four weld spots. I only saw three of them, one at the top on the right near the rear peep sight, and two in the middle at the tabs above the trigger housing. The fourth weld was a very small one on the bottom side right (the other side of the receiver from the first weld spot mentioned above), which was covered by the trigger assembly. After the first three welds were done, the old receiver would not slide out of the receiver housing, and it took some judicious pounding to get it out, at which point the fourth weld spot was discovered, as it broke free from the pounding.
This is the front portion of the receiver. Cutting off the slag on the right side allowed the magazine housing to slide off.
Magazine housing removed. Also, front sight post removed
Another part to remove from the front part is the barrel bushing, where there were four weld spots around the front edge of the receiver. Once the weld spots were mostly cut through, some chisel work peeled away the rest of the receiver from the front bushing. I can see why people just order a new barrel bushing for $28, because this is the hardest part to de-mill and it got a little messed up.
Finally, there is this piece on the inside of the old receiver. I haven't removed it yet, and I don't even know what it's for. I'll deal with that later. EDIT: It is the ejector.
I'll update this thread with the next step once it's completed.
First, a refresher. The parts I ordered...
A WWII British Sten MKII submachine gun de-milled to ATF standards. Receiver is torch cut. This means it is just parts, and can legally be shipped to my house.
A 16" 9mm barrel. I ordered my parts kit without the original 9" barrel as that would be illegal to use without a tax stamp for an SBR build.
A new 80% (or less) receiver, which is an ATF approved design because it has a smaller inside diameter and CANNOT accept a full auto bolt.
A new semi-auto bolt, which uses an AR-15 firing pin. It includes a new spring kit and associated parts.
All parts are able to be shipped to my house.
I am going to be using my neighbors Bridgeport. I have been waiting patiently for him to acquire more endmills for it, but while I wait for the rest to arrive, I decided to get the rest of the de-milling of the old receiver done today. This involves cutting and breaking weld spots on what's left of the old receiver so that the rest of the parts can be removed and used on the new receiver.
This is the rear portion of the old receiver, and there were four weld spots. I only saw three of them, one at the top on the right near the rear peep sight, and two in the middle at the tabs above the trigger housing. The fourth weld was a very small one on the bottom side right (the other side of the receiver from the first weld spot mentioned above), which was covered by the trigger assembly. After the first three welds were done, the old receiver would not slide out of the receiver housing, and it took some judicious pounding to get it out, at which point the fourth weld spot was discovered, as it broke free from the pounding.
This is the front portion of the receiver. Cutting off the slag on the right side allowed the magazine housing to slide off.
Magazine housing removed. Also, front sight post removed
Another part to remove from the front part is the barrel bushing, where there were four weld spots around the front edge of the receiver. Once the weld spots were mostly cut through, some chisel work peeled away the rest of the receiver from the front bushing. I can see why people just order a new barrel bushing for $28, because this is the hardest part to de-mill and it got a little messed up.
Finally, there is this piece on the inside of the old receiver. I haven't removed it yet, and I don't even know what it's for. I'll deal with that later. EDIT: It is the ejector.
I'll update this thread with the next step once it's completed.
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