Cleaning ACR
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a paper towel and barrel snake lol
if i clean it i use a little bit of clp but overall i just wipe some of the carbon off-it runs good dirty
if you are going to clean it military style i'd look into one of the otis 5.56 cleaning kits that the army issues out, they are small and have everything you would need
if i clean it i use a little bit of clp but overall i just wipe some of the carbon off-it runs good dirty
if you are going to clean it military style i'd look into one of the otis 5.56 cleaning kits that the army issues out, they are small and have everything you would need
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18 Posts
Can you guesstimate how many rounds you have put through your ACR? I'm assuming your trouble free with it while running it dirty or clean. For the new buyers out there I think this info can be helpful.
I'm actually looking for specifics also on cleaning agents for the upper that won't tarnish the finish. I'm not all that interested in dropping my $2k rifle into puddles of mud or going for world records on rounds between cleanings 
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349 Posts
Under "General Firearms" there is a thread about the military Otis kit you might find interesting.
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2,791 Posts
After a range session, I will generally just wipe everything down and run a bore snake thru the barrel. I will then place some CLP on the action spring and guide rod, 1 drop on the cam pin and 1 drop on each of the rail guides on the bolt carrier. I will pull the gas plug and give it a good wiping down as well.
At 1k rounds I used some Breakfree bore foam on the bore, chamber and flash hider. I also soak the gas plug in kerosene to break up all the built up carbon in addition to the above. I will also run a 9mm brush thru the gas block to clean it out some. I also clean the upper reciever in the gas block area to clean out all the built up carbon there.
I'm just shy of 1900 rounds at the moment and the rifle has run flawlessly with everthing I have fed it. I have had no feeding or cycling issues what so ever. The rifle has maintained a ragged 1 inch hole at 50yards off the bench, (with AE .223 and XM193 ammo) and and will easily outshoot me.
Really a very easy rifle to maintain. Especially after scraping carbon off AR15 bolts for years.
At 1k rounds I used some Breakfree bore foam on the bore, chamber and flash hider. I also soak the gas plug in kerosene to break up all the built up carbon in addition to the above. I will also run a 9mm brush thru the gas block to clean it out some. I also clean the upper reciever in the gas block area to clean out all the built up carbon there.
I'm just shy of 1900 rounds at the moment and the rifle has run flawlessly with everthing I have fed it. I have had no feeding or cycling issues what so ever. The rifle has maintained a ragged 1 inch hole at 50yards off the bench, (with AE .223 and XM193 ammo) and and will easily outshoot me.
Really a very easy rifle to maintain. Especially after scraping carbon off AR15 bolts for years.
I use an Otis kit for my ACR (and other firearms). They really make a nice, compact kit that works very well. Add a good bore snake and you're good to go.
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2,791 Posts
Can't help it, can still hear my instructor going berserk cuz he found a small bit of carbon on the back of a bolt.
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213 Posts
Breakfree CLP has always been my goto cleaning product and lube. It's very good at inhibiting rust and I've never had an issue with it. Other than that, I have always used Hoppe's #9 nitro solvent down the barrel using cleaning patches and a cleaning rod.
I believe Bushmaster and Magpul said the gun is designed to be ran completely dry, but I'd still cover the wear surfaces with a light coat of CLP just to be safe. Of course that's all I've ever done with my AR-15 and it's ran great, but some guys like to drench and drown their AR-15 BCG in lube to ensure reliability.
I believe Bushmaster and Magpul said the gun is designed to be ran completely dry, but I'd still cover the wear surfaces with a light coat of CLP just to be safe. Of course that's all I've ever done with my AR-15 and it's ran great, but some guys like to drench and drown their AR-15 BCG in lube to ensure reliability.
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242 Posts
I know this is a little off topic but goes along with cleaning.
To properly break in a rifle, you need to clean, fire, clean, fire.... and so on. Is this method still recommended for this gun? Would there be any benefit of "Properly breaking in a rifle barrel" for a gun that likes to run dirty?
To properly break in a rifle, you need to clean, fire, clean, fire.... and so on. Is this method still recommended for this gun? Would there be any benefit of "Properly breaking in a rifle barrel" for a gun that likes to run dirty?
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213 Posts
"Breaking in" a barrel is a waste of time. It's just one of those pieces of misinformation that gets passed around. If you are paranoid, you can swab your barrel out before shooting it for the first time to make sure no pieces of metal are in it, but it was already test fired at the factory so, that's probably pointless too.
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Barrel break in is for carbon and stainless barrels that are not treated with chrome or nitride. If done properly it will actual seal the pores and help finish the bore machining process. On barrels that have bore/chamber treament, (chrome & nitride) it does absolutely nothing. On those type of barrels, it is recommend you just blast away until you run out of ammo
I agree, these ACR barrels don't need to be broken in...as many have said here on this topic...just shoot itBarrel break in is for carbon and stainless barrels that are not treated with chrome or nitride. If done properly it will actual seal the pores and help finish the bore machining process. On barrels that have bore/chamber treament, (chrome & nitride) it does absolutely nothing. On those type of barrels, it is recommend you just blast away until you run out of ammo
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