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View Full Version : How to clean carbon deposit off of AR bolt and firing pin


vta
08-30-2009, 4:40 PM
Do you guys get a lot of deposits on your bolt and firing pin? If so, how do you clean it? It is caked on there pretty good without even a lot of use (~200 rnds). I used a dental pick to scraped them off cus I couldnt get it off with cleaning solution alone. Do you guys do that same? If not, what works for you?

mitchsti
08-30-2009, 4:46 PM
check out the cat m4 tool works real good imo

Seesm
08-30-2009, 4:46 PM
A dental pic will work just fine...

The best cleaner to get carbon off would be acetone and a wire brush.

Be careful on plastic parts you may be near... :)

luckystrike
08-30-2009, 4:56 PM
your detail stripping the bolt carrier right? let the parts soak in breakfree for a few hours

popeye4
08-30-2009, 5:06 PM
Or you could get one of these: http://www.brownells.com/.aspx/pid=1851/Product/AR_15_M16_AR_STYLE__308_CARRIER_CARBON_SCRAPER

sza
08-30-2009, 5:07 PM
Scrape it off with the mouth of a fired .223 case.

cryoguy
08-30-2009, 5:08 PM
I just use my pocket knife... the flathead screwdriver part.

Darklyte27
08-30-2009, 5:08 PM
Carbon killer from slip2000

dchang0
08-30-2009, 5:23 PM
I use a brass-bristle or copper-bristle brush and TCE-based "gun scrub"/brake cleaner, and it comes right off very easily.

tomd1584
08-30-2009, 5:24 PM
the carbon on the firing pin should just wipe off with a rag. For the bolt, buy some 725 degreaser from SLIP2000. let it soak for a few minutes and wipe off with rag. Done.

If its really bad, buy Carbon Killer as Darklyte27 mentioned.

-Tom

vta
08-30-2009, 5:30 PM
Carbon Killer looks like good stuff. any place in socal I can go pick this up or is it web only?

http://www.slip2000.com/carbonkiller.html

AlliedArmory
08-30-2009, 5:40 PM
i just soak it in some solvent and lightly scrape it off with a small flat head screwdriver.

it should easily just wipe off with a rag on the firing pin.

Darklyte27
08-30-2009, 5:54 PM
I bought mine directly, shops carry it, but not all of their products.. try asking your local shop to carry it.

FeuerFrei
08-30-2009, 8:01 PM
Cheap fix.
Buy some brake cleaner at Wally World and spray in down.
Comes right off.
OR
Expensive fix.
Buy a gas piston upper! Yep! Super clean in there.

vta
08-30-2009, 8:16 PM
Cheap fix.
Buy some brake cleaner at Wally World and spray in down.
Comes right off.
OR
Expensive fix.
Buy a gas piston upper! Yep! Super clean in there.

brake cleaner it is. lets not get into a gas vs piston upper argument cus those will never end.

ENDO
08-30-2009, 8:43 PM
I use a synthetic brillow pad with solvent. Cut a thin strip of it a few inches long wrap it around the bolt twist the bolt a few times and it should come out clean.

Josh3239
08-30-2009, 10:02 PM
I just use a toothbrush, any sort of swab/rag, and some CLP. Though I haven't cleaned my AR in a long time.

Ahhnother8
08-31-2009, 8:31 AM
Wipe-out turns it into a black gunk, which wipes right off.