300 Whisper/Fireball Project Part 1

[L1A1Rocker]

Disclaimer: Please do not start a silencer project without having your approved Form 1 in hand.

The project is actually finished but there are lots of pics so I'm breaking the post down. Here in this post I'll deal with cutting the barrel down and threading it.

So I received the Model 1 Sales kit and put it together to see how it would look.



Not too shabby. I was impressed with how well M1S packaged and shipped the kit. I ordered it with the gas port in the pistol location.

I decided to follow the design I used with the Mauser project and have the tube come way back over the barrel stopping just an inch and a half shy of the barrel nut. My first step was to locate where I was going to have the rear end cap of the tube and thread the barrel for it.

These two pictures show how I turned down part of the barrel to where the threads would begin.




Now with the thread relief cut.




And the threads done.

The threads are 13/16ths - the same as the barrel threads on a Ruger Mk-II Barrel/receiver.

The next step was to cut the barrel down to 10 inches. Some of you may be thinking that this is now a two stamp gun but no, it will not be. The overtube will extend 8 inches beyond the end of the barrel and blind pinned in place. Works like the extra long muzzle break used to make the AMD-65s legal.







I then crowned it using a hand crowning tool from Brownells. I seem to use a lot of their stuff. . .





The last step for the barrel was to thread the end of the barrel for the tube support (think two point attachment for a silencer). This was threaded 5/8ths by 18 LPI.





And the finished barrel. Well, almost finished, I still need to open up the gas port a bit.



That concludes part 1. Tomorrow I'll post a couple more parts as time allows.

[AKTexas]

Disclaimer: Please do not start a silencer project without having your approved Form 1 in hand.

The project is actually finished but there are lots of pics so I'm breaking the post down. Here in this post I'll deal with cutting the barrel down and threading it.

So I received the Model 1 Sales kit and put it together to see how it would look.



Not too shabby. I was impressed with how well M1S packaged and shipped the kit. I ordered it with the gas port in the pistol location.

I decided to follow the design I used with the Mauser project and have the tube come way back over the barrel stopping just an inch and a half shy of the barrel nut. My first step was to locate where I was going to have the rear end cap of the tube and thread the barrel for it.

These two pictures show how I turned down part of the barrel to where the threads would begin.




Now with the thread relief cut.




And the threads done.

The threads are 13/16ths - the same as the barrel threads on a Ruger Mk-II Barrel/receiver.

The next step was to cut the barrel down to 10 inches. Some of you may be thinking that this is now a two stamp gun but no, it will not be. The overtube will extend 8 inches beyond the end of the barrel and blind pinned in place. Works like the extra long muzzle break used to make the AMD-65s legal.







I then crowned it using a hand crowning tool from Brownells. I seem to use a lot of their stuff. . .





The last step for the barrel was to thread the end of the barrel for the tube support (think two point attachment for a silencer). This was threaded 5/8ths by 18 LPI.





And the finished barrel. Well, almost finished, I still need to open up the gas port a bit.



That concludes part 1. Tomorrow I'll post a couple more parts as time allows.

Good start,look forward to seeing the completed rifle.