i been using expensive canned air to clean electronics and i started using that on my .22s and glock.
watch:
http://www.amazon.com/review/RONM23SIOZ8MX/ref=cm_cr_pr_viewpnt#RONM23SIOZ8MX
watch:
http://www.amazon.com/review/RONM23SIOZ8MX/ref=cm_cr_pr_viewpnt#RONM23SIOZ8MX