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Posted: 12/17/2007 9:00:44 AM EDT
| Any help on getting rid of carbon from chamber without brushing an scraping forever, seems there would be something that would dissolve this stuff an then wipe out. To me this is the worst part of th DI system an makes a case for the new piston systems coming out. Any feed back or suggestions. Thx |
| Application of the appropriate corbon solvent to a patch wrapped around a AR15 chamber brush should do it. Chamber bruches can be found most places where firearms cleaning supplies are sold. BF Foam, Carbon Cutter and other solvents should do it. Just make sure you give the chemical time to work. |
+1 I use BF FBC which gets the locking lugs, chamber, bore and FH all in one application. Once the FBC has done it’s job I follow up in the chamber with a GI chamber brush and a bit of CLP. To remove the excess CLP afterwards, I drape a large patch or piece of old t-shirt over the chamber brush and wipe clean the chamber.      A q-tip snipped and clamped in surgeons forceps, dampened in CLP, makes easy clean-up of the locking lugs. 
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All of what QUIB said is part of my ruitine, however, I also add Synthetic-Safe gunscrubber to the equation so as to flush all the crap out of my reciever and chamber and gas-tube (followed by a shot of CLP and then wiping with a gas-tube pipe cleaner and then a shot of compressed air from a can). This is much quicker and effective than a Q-tip. (If it gets on your furniture it will discolor it, but don't freak out. Rub some CLP on it and it will be just fine, it is just removing any and all gunk (and oil/sweat, whatnot) from it and making it look lighter. CLP will remedy it). QUIB, how do I get the TOP of the gas-tube clean? I scrub the bottom with the GI nylon green brush, but how do I get the top? |
I use BF Powder Blast in the same fashion. Even before cleaning of the barrel begins, I flush out what I can with my BF Powder Blast. 
First, I get what I can using q-tips and CLP.  For the top of the gas tube which can not be seen with the upper receiver flipped up-side-down because it sits so close to the receiver, I use a strip of t-shirt. Cut a strip about 6” long by 1” wide. Apply a bit of CLP to the center of the strip and feed it under the gas tube. Now you can grab each end, and use a back and forth motion to get under the gas tube. |
Why don't you post your mailing addy so that soldiers can just overnight you their stuff before a whiteglove  You could be a rich man! |
No problem, glad to help.  Once you get your rifle up to a certain standard, as in keeping carbon under control, then it’s really not that hard to maintain. Let the carbon build up, then at a later date, you decide to start doing something about it and you could be in for some work. 
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| thats exactly the case, but really only ran a couple hundred rounds, but I left it for a couple of days an used some cheap wolf ammo, but thxs. From what I remember my m-14 from the old days had piston an was trouble free an much easier to clean. I'm some what new to the AR-15 platform an wonder why stoner would'nt of gone the piston rout from the begining |
Big +1 on that. |
Could cause a FTE(Failure To Extract). Short stroking is mainly an indication of a gas system fault. ETA: Some good basic info can be had here below, as well as info on trouble shooting....... www.armalite.com/Categories.aspx?Category=f496c10b-e8db-474f-9202-7fde98a0551f |
Never had good results using either of those for removing carbon. They do make excellent solvents for degreasing or flushing away of old oil and firing residue. |
+1 |
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