View Full Version : Sand Blasting Media Suggestion for AR Lower?

02-13-2014, 10:58 PM
Does any one know what is the common media used for sand blasting AR lower? I want to archive the matte finish that is found in typical mil-spec lower.

If you have any tip such as PSI, nuzzle type, etc... Please do share as well.


02-14-2014, 9:17 PM
Glass beads or a really fine aluminum oxide, perhaps 320 grit.

02-14-2014, 11:00 PM
I use 120 grit aluminum oxide at 45-55 psi. You can use glass beads or AO of any grit it all depends on the finish your looking for, you will have to dial it in with air pressure.

02-15-2014, 3:02 AM
Thanks guys. That will get me started.