If you're shopping for an aftermarket slide for your Glock, one of the first decisions you'll face is whether to go with an RMR cut or an iron sight cut. It's a choice that affects what sighting system you can run, how much you'll spend, and what your build looks like. Here's what you need to know. What Is an RMR Cut? An RMR cut is a machined pocket on top of the slide designed …
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