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Posted: 4/16/2014 12:57:27 PM EDT
EDIT:
Let me preface this by informing the readership that I originally purchased a new SIG Pistol Brace and had it mounted on a Phase 5 Pistol tube. It turns out that the Phase 5 tube is manufactured in such a manner that is has a greater circumference than the industry standard. It was this initial mounting of the brace with the Phase 5 tube (also a great product), that was the root of the issue described below. --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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The fix is to call them up
Its seems like you stretched it out. Not sure how to undo that... |
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I guess it's simply stretched from being on the previous tube.
I'm using the same KAK castle nut tube and it fit perfectly, quite tight enough to hold well but not ridiculously difficult to get on either. - OS |
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Not sure what doesn't work. Mine fits like a glove - not too tight, not too loose. However, I used a brand new brace. If you had the brace mounted on a larger diameter tube before, its possible the that sleeve have stretched to a point that now it's loose if you install on a smaller diameter tube.
The fix is to wrap tape around the KAK tube to increase diameter. |
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heat the stove up to 325 and put the brace minus the straps on a cookie sheet 5 minutes and pull it out , let it cool than you should have a tight fit again
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Quoted: heat the stove up to 325 and put the brace minus the straps on a cookie sheet 5 minutes and pull it out , let it cool than you should have a tight fit again View Quote I'm going to try this. Would it work by placing it in the oven already mounted to the KAK? I figure the aluminum and rubber will behave differently when heated and if the rubber does contract, I'd like for it to happen over the tube. I still can't believe the Phase 5 is so much larger. |
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I honestly would do 200-250 first before going to 325. Seems a bit high for something you dont know how hot it can get.
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I would try a good hair dryer before the oven, but if I were to use an oven it wouldn't be over 225...
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Let us know the outcome.. I've taken an SB15 but haven't tried it on anything else yet!
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180 deg F will do it, 30 minutes. It'll melt at 400 deg F.
Not on the KAK tube. Let it cool for 4-5 hours before trying to put it onto the tube. |
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Quoted:
ACE HEAT GUN.....(like a commercial strength blow dryer). <a href="http://smg.photobucket.com/user/yfz450air/media/Guns/ACEHEATGUN_zps3df0c2d4.jpg.html" target="_blank">http://img.photobucket.com/albums/v510/yfz450air/Guns/ACEHEATGUN_zps3df0c2d4.jpg</a> View Quote This, remove the velcro strap first, and take your time, keep the heat gun moving, sweeping back and forth over the outside, then shooting the hot air through both ends of the tube, then back to sweeping back and forth over the outside again, until the whole area for the buffer tube is too hot to hold, but never melting or smoking. Let it cool, then test your fit. |
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I have a buffer tube that is like the KAK and is sized for the SB15 with a slightly smaller diameter tube. Once you have heated the brace and returned the diameter of the buffer hole in the brace you should have a snug fit on the tube. The brace may still move some on the tube. I used a small amount of super glue to hold the brace in position. I put the glue near the front end of the tube about 1" back from the front position of the brace . The super glue set up QUICKLY. I first positioned the brace on the tube where I wanted it and then I used masking tape on both the front end of the brace and the buffer tube just in front of the brace. With the brace in position, I drew a line across both pieces of tape to mark the position. I slid the brace back and put the super glue in place. In one motion, I pushed the brace back on the tube lining up the line marks. The brace is solid and doesn't move.
Nail polish remover (acetone) can be used to remove the brace if you need to (like if the brace didn't go on on straight the first time before the marks were used!!). It may take awhile but it works. |
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Electrical tape is your friend here. The Phase 5 tube will indeed stretch your sb15 brace out.
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As well as the oven, I have heard you can boil your brace too. I have not done either so that's all I got.
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I'd try a heat gun first since you'll be able to target a specific area.
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Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop".
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Not sure as to where the boil story was. I read it as a comment in an older thread while I was lurking(i.e. before I was a member). The post didn't state much info on it, just more or less that it had been done.
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Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". View Quote You measure the temp coming out of the hair dryer? The heat gun I got is rated at 200 °F-1050 °F. I'm thinking that the hair dryer might measure in the low 100s. |
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Quoted: You measure the temp coming out of the hair dryer? The heat gun I got is rated at 200 °F-1050 °F. I'm thinking that the hair dryer might measure in the low 100s. View Quote View All Quotes View All Quotes Quoted: Quoted: Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". You measure the temp coming out of the hair dryer? The heat gun I got is rated at 200 °F-1050 °F. I'm thinking that the hair dryer might measure in the low 100s. |
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I hear you but any hotter and it would have melted the rubber. I was aiming through the tube and had the end partially blocked. It got WAY hot. What good is the ability to got to 1050°F is the rubber gets damaged at the high end of what I am currently using? View Quote View All Quotes View All Quotes Quoted:
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Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". You measure the temp coming out of the hair dryer? The heat gun I got is rated at 200 °F-1050 °F. I'm thinking that the hair dryer might measure in the low 100s. Just saying the hair dryer might not get the rubber to a high enough temp for contraction...not saying to crank it to 1050°F but enough to contract the rubber...not sure what that temp is...maybe your hair dryer will meet that temp...if not then the heat gun will. Or, maybe the material used in the Sig brace will expand, not contract with heat...... |
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Quoted: Just saying the hair dryer might not get the rubber to a high enough temp for contraction...not saying to crank it to 1050°F but enough to contract the rubber...not sure what that temp is...maybe your hair dryer will meet that temp...if not then the heat gun will. Or, maybe the material used in the Sig brace will expand, not contract with heat...... View Quote View All Quotes View All Quotes Quoted: Quoted: Quoted: Quoted: Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". You measure the temp coming out of the hair dryer? The heat gun I got is rated at 200 °F-1050 °F. I'm thinking that the hair dryer might measure in the low 100s. Just saying the hair dryer might not get the rubber to a high enough temp for contraction...not saying to crank it to 1050°F but enough to contract the rubber...not sure what that temp is...maybe your hair dryer will meet that temp...if not then the heat gun will. Or, maybe the material used in the Sig brace will expand, not contract with heat...... |
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Kurk,
If you are reading this, send me a message with your email address in it. I tried the one you messaged me but it bounced.
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Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". View Quote The KAK tube works fine on an un-stretched Brace. It doesnt fit as tight as in a Phase 5 or a GUNTEC tube.. but the KAK tube gives a much better LOP. Mount the brace ( an un-stretched-out brace) on tube with Hairspray or superglue... it will be a solid fit. |
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Quoted: The KAK tube works fine on an un-stretched Brace. It doesnt fit as tight as in a Phase 5 or a GUNTEC tube.. but the KAK tube gives a much better LOP. Mount the brace ( an un-stretched-out brace) on tube with Hairspray or superglue... it will be a solid fit. View Quote View All Quotes View All Quotes Quoted: Quoted: Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". The KAK tube works fine on an un-stretched Brace. It doesnt fit as tight as in a Phase 5 or a GUNTEC tube.. but the KAK tube gives a much better LOP. Mount the brace ( an un-stretched-out brace) on tube with Hairspray or superglue... it will be a solid fit. |
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Its been boiling for 7 minutes. Somebody tell me when to stop!
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17 minutes and sitting on my desk cooling right now. I'll report back once i attempt to re-fit it onto the KAK.
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17 minutes. sitting on my desk cooling right now. I'll report back once i attempt to re-fit it onto the KAK. View Quote Standing by :) Actually have you considered letting it cool ON the KAK? The fit on my PWS tube is a little loose for my liking, so I was pondering ways to improve it - I'll be interested to see if this actually works :) I also considered the electrical tape idea - which seems a little kludgy (admittedly probably very effective), and started wondering if that clearbra/paint protective film/whatever stuff that goes on cars and headlights... Seems like a layer of that wrapped around the tube would add just enough thickness without the overlap of the electrical tape. |
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Not to state the obvious, but don't you think I know this already? I have pistol tubes by 4 or 5 other manufacturers and they all are about the same circumference. The KAK is a lot skinnier. I like how a new Sig Brace fits on a Phase 5, I can't imagine the fit being very tight using a new Sig Brace and a KAK. View Quote View All Quotes View All Quotes Quoted:
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Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". The KAK tube works fine on an un-stretched Brace. It doesnt fit as tight as in a Phase 5 or a GUNTEC tube.. but the KAK tube gives a much better LOP. Mount the brace ( an un-stretched-out brace) on tube with Hairspray or superglue... it will be a solid fit. I have a pistol I installed on a Guntec tube on, I put a sigbrace on it and it is ruined for all other tubes. I tried to put it on a kak tube and it was a nogo. I bought a new brace and it worked fine ...plus it was much easier to mount.... and it stayed put. That's all I am saying, a new brace mounts well on a KAK sigtac tube. The fact that your altered brace won't mount on a kak tube doesn't make the kak tube defective anymore than a KAC E3 bolt is defective for not working well with conventional chamber |
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Quoted: Standing by :) Actually have you considered letting it cool ON the KAK? The fit on my PWS tube is a little loose for my liking, so I was pondering ways to improve it - I'll be interested to see if this actually works :) I also considered the electrical tape idea - which seems a little kludgy (admittedly probably very effective), and started wondering if that clearbra/paint protective film/whatever stuff that goes on cars and headlights... Seems like a layer of that wrapped around the tube would add just enough thickness without the overlap of the electrical tape. View Quote View All Quotes View All Quotes Quoted: Quoted: 17 minutes. sitting on my desk cooling right now. I'll report back once i attempt to re-fit it onto the KAK. Standing by :) Actually have you considered letting it cool ON the KAK? The fit on my PWS tube is a little loose for my liking, so I was pondering ways to improve it - I'll be interested to see if this actually works :) I also considered the electrical tape idea - which seems a little kludgy (admittedly probably very effective), and started wondering if that clearbra/paint protective film/whatever stuff that goes on cars and headlights... Seems like a layer of that wrapped around the tube would add just enough thickness without the overlap of the electrical tape. A. Going to sell it mounted on the Phase 5 and purchase a new Sig brace. (Nothing wrong with that combo and the phase 5 also uses the standard end plate and castle nut so somebody will be getting a good deal). or... B. Slather a layer of industrial strength driveway or roof caulk on the tube, push it through, wipe the excess off the end, wait 24 hours and call it a day.
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Quoted: I have a pistol I installed on a Guntec tube on, I put a sigbrace on it and it is ruined for all other tubes. I tried to put it on a kak tube and it was a nogo. I bought a new brace and it worked fine ...plus it was much easier to mount.... and it stayed put. That's all I am saying, a new brace mounts well on a KAK sigtac tube. View Quote View All Quotes View All Quotes Quoted: Quoted: Quoted: Quoted: Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". The KAK tube works fine on an un-stretched Brace. It doesnt fit as tight as in a Phase 5 or a GUNTEC tube.. but the KAK tube gives a much better LOP. Mount the brace ( an un-stretched-out brace) on tube with Hairspray or superglue... it will be a solid fit. I have a pistol I installed on a Guntec tube on, I put a sigbrace on it and it is ruined for all other tubes. I tried to put it on a kak tube and it was a nogo. I bought a new brace and it worked fine ...plus it was much easier to mount.... and it stayed put. That's all I am saying, a new brace mounts well on a KAK sigtac tube. |
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I got you... I wasn't trying to be rude. I was just frustrated with my lack of progress. If I were designing a tube for a Sig Brace I would build it on the fat side. I wonder why KAK decided to go a different route. View Quote View All Quotes View All Quotes Quoted:
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Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". The KAK tube works fine on an un-stretched Brace. It doesnt fit as tight as in a Phase 5 or a GUNTEC tube.. but the KAK tube gives a much better LOP. Mount the brace ( an un-stretched-out brace) on tube with Hairspray or superglue... it will be a solid fit. I have a pistol I installed on a Guntec tube on, I put a sigbrace on it and it is ruined for all other tubes. I tried to put it on a kak tube and it was a nogo. I bought a new brace and it worked fine ...plus it was much easier to mount.... and it stayed put. That's all I am saying, a new brace mounts well on a KAK sigtac tube. No worries I wasn't trying to be rude either. I actually was a bit annoyed that I had to buy a new brace also... for a bit I wrapped my kak tube in heavy duty duct tape and mounted my stretched out brace on it... it actually worked real well I eventually got a new brace... fixing your gun with duct tape is a slippery slope ... |
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So the brace is cool to the touch. I test fit it and it has shrunk enough to where it fully makes contact with the tube. Not as tight as with the Phase 5 but it doesn't just fall off anymore either. I dug around the garage and I'm thinking that this would be a good candidate.
The only other thing that I have on hand is spray rubberized undercoating. |
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Maybe try and boil it a couple more times to see if it shrinks back any smaller, just to make sure. But otherwise I'm glad you somewhat got it sorted out.
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Looking good. I was just thinking though, maybe next time drop it in the deep fryer for better results.
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Wouldn't some large diameter heat shrink tubing on the tube have worked - like the kind you get at electrical supply houses?
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I was about to microwave it, but then I thought about the time my son and I put a ping pong ball in the microwave to see what would happen. View Quote View All Quotes View All Quotes Quoted:
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Looking good. I was just thinking though, maybe next time drop it in the deep fryer for better results. What happened? |
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Quoted: Quoted: Quoted: Looking good. I was just thinking though, maybe next time drop it in the deep fryer for better results. What happened? Ping pong balloon.... For a bit. Then ping pong ball guts everywhere. I got shut out of the master bedroom for a few days on that one. Re: heat shrink tubing , I don't think it would work. There's no way you'd get the brace on over something like that.
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Quoted: What about good-ol friction tape? View Quote |
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SICK DDLES lower build! I need to get my DDLES lower going into a pro build like that.
When did you get your lower? |
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I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop".
I wonder why KAK decided to go a different route. I can tell you this, Kurt, the owner of KAK, works closely with sig, sells a ton of there products, He built this brace specifically for the sig brace. all of his tubes are designed around the inner diameter of the brace. I have one of each of his tubes and they all fit perfect, no movement at all. We (Kurt and some other friends) all shot this weekend in a informal friends idpa style blackout shoot and at least 6 of guns were equipped with the brace and gen 2 tube. no problems, no movement, no adjusting, Burned up probably 1500 rounds of 5.56, .300blk, 7.62 x 39 all in pistol form with and without cans. Zero trouble. If someone is building a pistol specifically to be equipped with a sig brace, KAK is the way to go. I'm not aware (at this time) of anyone else who builds tubes for the brace other than sig. just my .02..... |
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Quoted: Stuck my wife's $200 Chi hair dyer on it for 30 minutes. That thing has to be as good as a heat gun. Letting it cool down now. I have a bad feeling about this. If it doesn't work out, I'll put the brace back on the Phase 5, sell it on EE (it is perfectly fine BTW), and order another Sig Brace. I knew that KAK was too good to be true. All the good pistol tube makers, do larger circumference tubes, EXCEPT the one company that make the awesome "brace stop". View Quote |
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This issue has been resolved. I sold the other Sig Brace mounted to the Phase 5 pistol tube. A brand new Sig Brace arrived in the mail today and all I did was put some hair spray on the KAK tube, mount the new brace and align. The whole setup is drying now.
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