I recently purchased and installed a C&H metal plate for my M&P 10mm 2.0 with Holosun 507C RDO. I noticed that the Holosun and S&W plastic plate started getting a little loose after about 400 rounds, so I upgraded. Only 100 rounds with the C&H so far, but everything is still tight. Installation was quick and easy with Holosun screws and blue Loctite.
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