M-Pro7

[lbc_PSI]

Does anyone have any feedback on using this product for cleaning airgun barrels?

Does it damage o-rings? I visited their website, but couldn't find any FAQs or other info..might have to call their 800#

The info says cleans lead, carbon, and brass..

 

[7Green]

I use wd40.

 

[beerthief]

make sure it does not harm O rings , lot of cleaners will damage O rings.

 

[lbc_PSI]

make sure it does not harm O rings , lot of cleaners will damage O rings.

Yep. Was going to test on a spare o-ring to see if anything obviously bad occurs.

Plus remove the barrel o-ring on the RTI barrel I was planning to use it on..while the sprayed o-ring is "cooking".

 

[lbc_PSI]

The o-rings next to the M-Pro7 in the aluminum tray and towel were sprayed..twp squirts on both sides. The two control o-rings on the left are "un-sprayed".

I'll let them sit a day and then check their elasticity by pushing them up a plumb-bob an see if/where they fail.

 

[lbc_PSI]

Well...

Here's pics of the plumb-bob test with the larger o-rings. Didn't take pics of the smaller ones. Bottom line was that none of the o-rings failed. All stretched to 3-4 times their original OD by pushing them down the plumb-bob. Probably not the most scientific, but...

I have an e-mail in to the contact-us form on the M-Pro7 website..waiting for a reply. They seem to be a small subsidiary of the larger Vista Outdoor line of products, so I'm thinking a reply is not going to be sent "next day". Keep ya all posted.