General Categories > The NFA Corner
e-file a form 1 suppressor
orion:
This build has a 8" Ti tube, end cap and thread protector. Baffles will be formed freezer plugs. Shooting for 15 of them inside the tube.
Got the Ti from SD Tactical Arms. I like to get my MSR parts from places like that..vet owned and operated.
tstuart34:
15 seems like a lot for 8" how big is your blast chamber? Are you using a standard design? Havent done alot of research on the freeze plug supressors.
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orion:
Blast chamber will be 1.5"
Here's a link to the drawing below by Weber http://sdtacticalarms.boards.net/post/291
Doing a trial fit, with my unformed FP, only 13 will fit allowing for a 1.5" blast chamber. I might need to trim the integral baffle "spacer" to get the other two in there.
shooter:
how are you bending your frost plugs?
what shell do you intend to fire thru this?
orion:
300Blk mainly but have the ability to go 5.56.
FP forming. All forming will be done on a 3 ton arbor press. Make a jig to hold the FP and two forming punches; a 45* punch that will be used first then a 60* punch. I want to end up with a 60* cone at the end but I'm afraid that trying to get the desired angle all in one shoot may stress the FP to much causing it to tear. After forming to the desired cone angle chuck it up in a lathe and center bore it too .375". I may have to center bore them first before forming if they want to tear while forming. I'll use a 1/8" drill for that if needed.
Depending on how many formed FP will fit in the tube I may have to chuck them up in a lathe and shorten up the skirt to get more into the stack.
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