I'm in the process of building my first AR, and I've got a few questions regarding proper cleaning. I've always used my Dad's cleaning stuff, so all we ever use is the old school Hoppe's #9 or Remington stuff.
However, since I've gotten serious about this AR, I've read about BF CLP, Kroil, FP-10, Sweets 7.62, etc., etc., etc. I want to step up to some serious products that will actually do a good job. I'me going to buy a coated one-piece rod, bore guide, chamber brush, etc., so all that's left for me to figure out is lube and cleaning solvents.
I read the thread on BF CLP not being as good as it used to, but then again, I've had it recommended to me a few times. I don't know a thing about Kroil or FR-10, other than the fact that they're out there. And I've heard that Sweet's 7.62 is a great copper fouling remover (which will come in hand). I need whatever I buy to be useful in all my firearms (shotgun, bolt-action rifles, and handguns, plus the AR).
I'll have to see if I can dig anything else up regarding this matter (perhaps over at TFL?), but any comments would be great. I live in AZ, so I'm concerned with lubes attracting too much dirt or running in the heat. Thanks!
The best CLP out there in my opinion is the Firepower FP-10 hands down,particularly as a lube and protectant.
My other all time favorite lube/protectant is Mil-comm's TW-25B and MC-2500.
Break Free works also but takes a third place in my book...not as good of a lube or protectant as the Mil-comm or FP-10 IMHO.
There is nothing wrong with Hoppe's#9 for normal cleaning of carbon and powder fouling.It cleans a bit slower than some of the others but its completely safe for the weapon.It will also remove copper if allowed the time to work.Use it all the time and always have.
For a copper solvent I use Sweet's 7.62 or BoreTech Benchrest Blend.
Here's little reading on the FP-10:
Sweets 7.62 WILL pit the barrel if left in for more than 15 minutes or so. I know people who it's happened to. I use Hoppe's Copper Solvent and it works excellent. I highly reccomend it.
"Pit the barrel"?
Sorry man, but it will take some other influences to do so.
"Ammonia cracking" will occur after some rather extended usage bit pitting ain't a problem.
Other influences such as nitiriding and heat/errosion are more damaging than simple exposure to a light oxidizer such as Sweets, and are present in every rifle bore that gets fired.
Sweets is safe if used within limits, and if after 15min and pits form, the barrel was junk to begin with.