Is there an after-market part that can make the Glock 17 (Gen 3) slide a bit easier to rack? (The slide on my Sig P226, by comparison, is smooth as butter.) This is not only a comfort issue. It could also be a life-or-death issue, if someone were in a shootout, say, and needed to rack the slide, especially with sweat, blood, rain, seawater, or sand on the hands. Thanks for your help.