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Posted: 9/29/2009 1:22:48 PM EDT
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The other day, I started thinking about how terribly expensive some muzzle devices are. After some thought and
frustrations, I decided I'd try to machine my own. I began drawing up blueprints by studying the muzzle devices I currently have and came up with a design that I was happy with. Since I knew there was going to be a learning curve, I decided on 12L14 for the material and began turning and milling it. Three days and a lot of chips later I was done... sorta.. Here's some cell phone pictures, since my camera is still broken:  
Can anyone see what's wrong?  
How about now? 
Yeah, I milled the flutes backwards which will make the compensator rotate itself loose overtime. Other then that, I'm actually quite happy with how it turned out. I figured I'll make the next one out of either 416 stainless w/ a polished finish or 4140 chrome moly w/ parkerized finish. What do you guys think? Comments and suggestions are welcome. Re-edited: I'll think about making a batch just for you guys.. if I perfect the design. Quoted:
I got around to parkerizing it so here's a couple crappy cell pics: 
Cooking away. 
Finished side view. 
Finished top view. I haven't had the chance to test it out yet but hopefully I will soon and then I'll let you know how well it works / doesn't. |
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The real question is, how effective is it? This! I'm basically trying to modify designs until I reach a level of effectiveness that I can live with. Quoted:
Other than backwards looks a lot like the vortex. Looks great! Hope it works out well for you. I basically made the flute pattern (different dimension) of the FSC556 the same length as the vortex flutes and added the compensating port of the surefire muzzle brake (again different dimension). I'm contemplating adding 2 holes pointed upward to reduce muzzle rise like the surefire muzzle brake but I'll test the effectiveness of this combination first. I'll also update this thread later on with info and pics (if I get my camera working) of my testing. Lot's of trial and error here, but much more fun then just buying one. 
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The ports before the flash suppressor tines might make a pretty fireball negating the suppression effect. This is just speculation, but there is only one way to find out! Yeah, I'm afraid of that.. My backup plan there is to replace the port with 4 holes in the corners of the big gap and possibly add the 2 holes upward as well. Will test first and let you guys know! |
Working on it..
Looks great. i think you're going to find that the port creates a huge fireball (depending on powder) but what the hell. I drew up a similar one for my .458 SOCOM but since I can't machine my own I was going to have emachineshop.com do it. One off was about $250 but if I did a run of 10 they were down to something like $60. I was trying to scare up interest when the forum went down. 
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Too bad you won't make those for other people, the design looks great. Re-edited to remove that tid-bit as I might think about it, need to perfect the design first. 
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Looks great. i think you're going to find that the port creates a huge fireball (depending on powder) but what the hell. I drew up a similar one for my .458 SOCOM but since I can't machine my own I was going to have emachineshop.com do it. One off was about $250 but if I did a run of 10 they were down to something like $60. I was trying to scare up interest when the forum went down.
http://i17.photobucket.com/albums/b65/bushflyr/458SOCOM/IMG_4493.jpg I figured I wasn't the only one. Maybe if I perfect the design I can make a batch and offer them here on ARFCOM... We'll see. What type of threading does the .458 have? |
| I love experimenting to find the perfect brake for each gun. The 3d rendering is great on the other post as well. While they look like pretty fair knock offs of others designs, what is the purpose? Developing a large fireball as others have suggested eliminates it as a flash supressor and it is obviousy not a muzle brake. Fancy thread protector? |
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I love experimenting to find the perfect brake for each gun. The 3d rendering is great on the other post as well. While they look like pretty fair knock offs of others designs, what is the purpose? Developing a large fireball as others have suggested eliminates it as a flash supressor and it is obviousy not a muzle brake. Fancy thread protector? I hope there isn't a huge fireball, but I won't know until I test it. I'm aiming for recoil reduction and flash suppression. Have any suggestions how to accomplish both without paying $60+? This is my first attempt and the main goal was overcoming the learning curve as I don't plan to use 12L14 for extended periods on my rifles. |
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Quoted:
I love experimenting to find the perfect brake for each gun. The 3d rendering is great on the other post as well. While they look like pretty fair knock offs of others designs, what is the purpose? Developing a large fireball as others have suggested eliminates it as a flash supressor and it is obviousy not a muzle brake. Fancy thread protector? I hope there isn't a huge fireball, but I won't know until I test it. I'm aiming for recoil reduction and flash suppression. Have any suggestions how to accomplish both without paying $60+? This is my first attempt and the main goal was overcoming the learning curve as I don't plan to use 12L14 for extended periods on my rifles. And you will be one of the guys who can say, "This is what will happen because I tried it." I am curious as how well 12L14 will hold up on the end without spreading the tines apart. As the tines are after your side ports this may not be a problem. 12L14 is cheap (70 lbs in a flat rate box for ~20 bucks is the way to go) and machines very well. Not the strongest stuff around, though. |
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And you will be one of the guys who can say, "This is what will happen because I tried it." I am curious as how well 12L14 will hold up on the end without spreading the tines apart. As the tines are after your side ports this may not be a problem. 12L14 is cheap (70 lbs in a flat rate box for ~20 bucks is the way to go) and machines very well. Not the strongest stuff around, though. Yep, cheap and easy to machine is exactly why I'm using it for R&D. I'm considering heat treating it first but it won't harden much as I can't reach the temperature needed... the other thing I was worried about was rust. 12L14 rusts FAST so I may give it a park job in the next few days. Got the camera working finally and will be posting pictures of the progress. Quoted:
You are going to test this one, right? Just because it screws off, doesn't mean you can't test it, just that you check to verify it is still tight after each shot. Affirmative, I'll be testing it to see if the port blows flames and will modify from there. Should be able to get to the range either this weekend or next week sometime. |
A friend of mine on another board made me a couple flash hiders just for grins, turned out pretty good.
I've since went back to an A2 flash hider, and will soon get a brake of some type, most likely a DNTC. I don't need a flash hider, I'm more concerned with the dot or crosshairs staying in one place for the second shot. Sure the AR doesn't really have much in the way of recoil, but the muzzle does move and I'd like to limit that as much as possible. It is cool having a one off custom part on your boom stick though.
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