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4/25/2017 7:42:44 PM
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Posted: 5/2/2011 6:45:30 AM EDT
How do you guys clean the inside of your bolt carrier.

Specifically where the bolt fits into the carrier.

I l\see lots of carbon build up in mine. Do you use a screw driver to scrape it out??? Thanks
Link Posted: 5/2/2011 6:55:20 AM EDT
I use a nylon bore brush. Screwdriver?
Link Posted: 5/2/2011 6:58:53 AM EDT
The carbon is at the back of the recess where the bolt fits, not on the sides.
Link Posted: 5/2/2011 7:06:23 AM EDT
Originally Posted By jvm:
The carbon is at the back of the recess where the bolt fits, not on the sides.


Well, you could get some CLP on the surface and just let it soak, then hit it with the cleaning rag, but I've never been concerned with that spot.
Link Posted: 5/2/2011 7:08:27 AM EDT

Originally Posted By allenNH:
Originally Posted By jvm:
The carbon is at the back of the recess where the bolt fits, not on the sides.


Well, you could get some CLP on the surface and just let it soak, then hit it with the cleaning rag, but I've never been concerned with that spot.

The small end of the GP brush.

Link Posted: 5/2/2011 7:08:45 AM EDT
soak in equal parts CLP and mineral spirits and then brush.
Link Posted: 5/2/2011 7:08:59 AM EDT
squirt with solvent, let soak, clean out with a patch on the rod, then get the back and the hole with a Q-tip.
Link Posted: 5/2/2011 7:12:22 AM EDT
I soak the entire carrier in CLP while I am cleaning the rest of the gun. That allows it to soak in the CLP for a while and it helps loosen up the grime. Then I scrub it with a nylon brush. If there is some stubborn build up, I will use my CAT M4 tool to scrape at it, but I cover the tool with a patch or two so that it is not metal on metal.

The thought of scraping it with a screwdriver makes me cringe.
Link Posted: 5/2/2011 7:26:45 AM EDT
I just leave it alone. Thousands of rounds later the gun still works fine.
Link Posted: 5/2/2011 7:44:40 AM EDT
I chip it out with an Otis brass scraper sometimes.
Sometimes.

I am not all that crazy about cleaning things though.

Link Posted: 5/2/2011 8:11:52 AM EDT
Member here for over 8 years, 1,600 posts......and you don't know how to clean a bolt carrier? I don't know if you were trying to be funny, but asking if a screwdriver was the right tool to use.....really?
Link Posted: 5/2/2011 8:32:29 AM EDT
Originally Posted By devinsdad:
Member here for over 8 years, 1,600 posts......and you don't know how to clean a bolt carrier? I don't know if you were trying to be funny, but asking if a screwdriver was the right tool to use.....really?


I think he meant the actual upper and a tight spot in there. Not the BCG itself...
Link Posted: 5/2/2011 8:35:33 AM EDT
Originally Posted By SoupNazi:
Originally Posted By devinsdad:
Member here for over 8 years, 1,600 posts......and you don't know how to clean a bolt carrier? I don't know if you were trying to be funny, but asking if a screwdriver was the right tool to use.....really?


I think he meant the actual upper and a tight spot in there. Not the BCG itself...


no...he says the inside of the bolt carrier.
Link Posted: 5/2/2011 8:38:24 AM EDT
I've got a bronze bore brush for my muzzleloader that cleans that carbon out well, though I've only used it once because it's not necessary.
Link Posted: 5/2/2011 8:41:24 AM EDT
[Last Edit: 5/2/2011 8:43:30 AM EDT by lmssts]
Link Posted: 5/2/2011 8:58:51 AM EDT
You can use a stripper clip to scrape the carbon.
Link Posted: 5/2/2011 9:03:16 AM EDT
Take a gallon of de-oderized mineral spirits and mix in one quart of synthetic motor oil. I use this as a soak for part, does a great job soaking off carbon. Swish it around once in a while and use your nylon brush. When you are done, take the parts out and let them air dry. When the DMS evaporates you will have a nice thin layer of the synthetic motor oil.
Obviously this only works if you have time to let stuff soak for days or a week... If this is your HD weapon, then you may need to borrow your spare BCG while this one is in the bath.... or limit your soak time to a couple of hours...

There is a thread on this about once a year.....
Link Posted: 5/2/2011 9:03:34 AM EDT
Old toothbrush.
Link Posted: 5/2/2011 10:15:03 AM EDT
If it really dirty I soak it
Link Posted: 5/2/2011 11:05:54 AM EDT
green dish scrubby
Link Posted: 5/2/2011 11:23:10 AM EDT
Spray mine out with brake cleaner....2-3 blast and its clean.
Link Posted: 5/2/2011 12:34:21 PM EDT
Originally Posted By wahoo95:
Spray mine out with brake cleaner....2-3 blast and its clean.


+1
Link Posted: 5/2/2011 1:01:07 PM EDT
Clean what you can with a Q tip its self limiting keep it lubed well and only so much carbon will build on the rear of the carrier or tail of the bolt.Just regualrly clean when not shooting.More damage can be done from over cleaning and improvised scrapers than anything else.
Link Posted: 5/2/2011 1:08:42 PM EDT
If you have a couple extra bucks to spend these are great. A fantastic company to deal with too!

http://catm4.com/
Link Posted: 5/2/2011 1:13:09 PM EDT
[Last Edit: 5/2/2011 1:14:16 PM EDT by Fields_Overseer]
soak it in gunscrubber, shove a papertowl real tight in there and twist it for a minute, repeat until its clean.

I also use a metal stick(bent paperclip, bore punch, whatever is handy) to scrape the carbon from the angle in the very back.
Link Posted: 5/2/2011 3:28:40 PM EDT
breakfree and Qtips
Link Posted: 5/2/2011 3:59:55 PM EDT
Originally Posted By lmssts:
Bolt carrier carbon scraper



This. May not be necessary but I refuse to leave that hard carbon build up in there, and it saves a lot of time.
Link Posted: 5/2/2011 4:03:28 PM EDT


This ^

Best money you will ever spend on an AR15 tool

Link Posted: 5/2/2011 4:58:13 PM EDT
Originally Posted By gunner_71:
soak in equal parts CLP and mineral spirits and then brush.


This is what I do. It works very well.
Link Posted: 5/2/2011 4:58:24 PM EDT
magnamatic makes a great tool.
Link Posted: 5/2/2011 6:00:54 PM EDT
Originally Posted By Henny:
If you have a couple extra bucks to spend these are great. A fantastic company to deal with too!

http://catm4.com/


They have these local at GSS, I will pick one up...Thanks for the information.
Link Posted: 5/2/2011 7:50:30 PM EDT
Hose it off with brake cleaner, let it dry, lube it and reassemble. If it were a precision rig I'd do it a little different.
Link Posted: 5/2/2011 8:09:11 PM EDT
Clean what you can with a Q tip its self limiting keep it lubed well and only so much carbon will build on the rear of the carrier or tail of the bolt.Just regualrly clean when not shooting.More damage can be done from over cleaning and improvised scrapers than anything else.

This.
Link Posted: 5/2/2011 11:16:42 PM EDT
Originally Posted By wolverine05:
The thought of scraping it with a screwdriver makes me cringe.


Ya no kidding
Link Posted: 5/2/2011 11:33:16 PM EDT
Originally Posted By wahoo95:
Spray mine out with brake cleaner....2-3 blast and its clean.


same here not a problem yet.

although today i must admit i sprayed mine out and some splashed back in my eye, put the gun down and rinsed out my eye with water and drenched my eye ball with visine < personal problem not a gun functioning problem lol
Link Posted: 5/3/2011 2:48:50 AM EDT
I don't.Never been a problem.
Link Posted: 5/3/2011 6:06:51 AM EDT
35 replies !!!!! thanks guys for all your help !!!!
Link Posted: 5/7/2011 11:42:25 PM EDT
Originally Posted By jvm:
35 replies !!!!! thanks guys for all your help !!!!


Yeah... this place is heaven...
Link Posted: 5/11/2011 12:49:33 PM EDT
Originally Posted By gunner_71:
soak in equal parts CLP and mineral spirits and then brush in my ultra sonic cleaner.


J-

Link Posted: 5/13/2011 9:08:51 AM EDT
Spray with carb cleaner, let set five minutes, spray again, spotless. Oil and assemble.
Link Posted: 5/17/2011 10:31:58 AM EDT
Originally Posted By madcratebuilder:
Spray with carb cleaner, let set five minutes, spray again, spotless. Oil and assemble.


Is this for real? It sounds to good to be true.

Has anyone else done this?
Link Posted: 5/17/2011 11:44:26 AM EDT
carb or brake clean works. just make sure to lube it up real good.

make sure if the rifle sits for a while that you give it a splash of lube before heading out and shooting...

you can never lube to much...
Link Posted: 5/17/2011 12:39:25 PM EDT
Originally Posted By _Lord_Of_War_:
carb or brake clean works. just make sure to lube it up real good.

make sure if the rifle sits for a while that you give it a splash of lube before heading out and shooting...

you can never lube to much...


I have used brake clean with no luck, but I have never used carb cleaner.
Link Posted: 5/23/2011 3:34:05 AM EDT
I bought a 500 pack of those 6" long wood qtips, they work great for getting down into the BC. What they don't clean out I use some old dental picks to lightly scrap any carbon.
Link Posted: 5/23/2011 4:43:19 PM EDT
Soak in CLP, long wooden toothpicks for the tough stuff, & the wife's toothbrush (when she isn't looking).
Link Posted: 5/31/2011 6:42:42 AM EDT
Slip 2000. Follow the instructions. You will be amazed. Follow the instructions.
Link Posted: 7/19/2011 1:31:17 PM EDT
Well, what if someone were to have used a screwdriver?

I actually did this today, I carefully used a small flat head to try and scrape the larger deposits. All that same out was black stuff, no metal shavings of any sort and I didn't see any scratches when I kept checking it as I was cleaning. Think any harm was done?

I think at this point, I will just use some of these methods mentioned.
Link Posted: 7/20/2011 4:23:40 AM EDT
I use the end of a buggered cleaning rod. The threads are already shot so that piece is a ‘custom built’ tool for scraping the carrier.

I buddy of mine uses three rods then laces his fingers between them to get some tension. He gets done about three times as fast as me. Honestly, the high pressure gas that blows through the carrier each time the weapon cycles keeps it functionally clean enough...
Link Posted: 7/21/2011 7:53:30 AM EDT

this thing looks great, but $30 for it? c'mon. this is why people buy chinese knock offs. thats a rip.
Link Posted: 7/21/2011 8:18:29 AM EDT
I hose down the carrier with CLP and let it soak, while I'm cleaning the rest of the weapon.

Generally, I don't worry about scraping that area of the carrier too much. It's pretty much pointless to clean it too much, or worry about cleaning it.
Link Posted: 7/21/2011 11:39:01 AM EDT
Originally Posted By ARonly:
Originally Posted By wahoo95:
Spray mine out with brake cleaner....2-3 blast and its clean.


same here not a problem yet.

although today i must admit i sprayed mine out and some splashed back in my eye, put the gun down and rinsed out my eye with water and drenched my eye ball with visine < personal problem not a gun functioning problem lol


Sorry 'bout that, but had to laugh when I read that, because it made me flash back to all those FI's yellin' at us to wear eye protection while cleaning, "because the one time you don't the guide rod springs gonna fly off right in your eye"

I use and highly recomend the CAT M-4 tool, clp(name your own poison) and a patch. better than a screwdriver.
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