This is a write up for a Unique contract.
We will be starting with a stock max shot.
Lets start with the new breech.
First I would like to say that this breech is inspired by Captain slug, Black sunshine and my very own Angel breech.
Take a piece of PVC and superglue it to a male threaded coupler.
Then make a mark about 2" away from the coupler on the pvc.
Now cut into the pvc a hole that is large enough to fit your stefans both length and width wise.
Also take a piece of 19/32" and make sure it is of equal length to the PVC assembly.
Now fit your brass in the PVC assembly and make sure it goes all the way to the back of the coupler.
Then make an outline on the brass so you know where to cut.
Now cut your brass and slide it back in and make sure it fits nice and snug. Use E-tape and plumbers goop to ensure a good snug fit.
Now take 1/2" of 9/16" and put it inside the threaded end of the coupler into the 19/32"
Then take 1/2" of 17/32" and put it inside the 9/16"
Then take 3/4"" of 1/2" and put it into the 17/32"
This assembly works kind of like an Angel breech but backwards. I guess that makes it a "Demon Breech".
Now take the desired length of 9/16" and put it in 19/32" through the front.
I am also going to suggest adding tightening rings for two reasons.
#1 I have found all spring guns work better with them.
#2 The rings will prevent you from pulling the barrel too far out.
Now also wrap some E-tape around the exposed end of Brass, lather some P-goop on it and add your 1/2" PVC.
Simply add the female threaded coupler as close to the plunger tube as possible.
Now take as much inches of 15/32" brass as you need and extend it even closer to the air source if you need to.
Flare out the end towards the air to receive better air flow. Also don't forget to superglue all of your brass connection points. All except for the 9/16" main barrel. Then fill all the dead space with hot glue. I took this opportunity to add a plunger cushion right after. Remember kiddies less dead space = better performance.
Now the next part is both cosmetic and functional.
I did not like the way the handle felt. I didn't think it was "grippy" enough.
So I decided to do something about it.
Take 2 1/2" couplers and drill out there center pieces. Then super glue them together. Draw a line down the side. Keep it as straight as possible.
Now drill holes along the line and bore them out one by one. Sand once finished and polish each hole so it's nice and smooth to finish it clean.
Now slide it over the original barrel and super glue it in place. Looks good doesn't it? Wait until the paint comes.
If you have done all of these steps you have made this new breech.
Now I will explain how the breech works for anyone who hasn't caught on yet.
You pull the front of the barrel forward to open the breech.
Pop a stefan in there.
Pull the breech shut. As the breech closes the 9/16" with tightening rings will push the dart back into the 1/2" barrel. That 1/2" will push the dart into the tightening rings while the 9/16" continues to move farther backwards. That's right kiddies, You can shotgun load this bad boy!
The 19/32" acts as the sheath.
The 9/16" is the main barrel.
The 1/2" is the stopper which actually pushes the stefan into the 9/16" While the 9/16" keeps moving backwards.
Now I put the coupler very close to the plunger. There is a shot in the video you will see that there is a lot of dead space in the max shot plunger.
Now as for how the coupler looked in the shell.
It's flush but it looks even worse than a gaping crossbow. So I decided to do something about it.
To do this write you need to lightly lubricate everything you don't want to stick. Then bust out the epoxy putty and go to town with it. This is the end result after it has been sanded down. Don't forget to leave a thin seam along the middle.
Edited by Forsaken_angel24, 03 July 2009 - 04:26 PM.