This tutorial shows you how to polish the internals of a Tippmann paintball marker using the sandpaper method. Using different grades of sandpaper, you can smooth out the overspray so that your bolt can cycle more smoothly.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.
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