This guide details the process of building a Polymer80 PF45 frame for a Glock 20 in 10mm Auto. It covers unboxing the PF45 kit, comparing it to other Polymer80 frames, assembling the Glock 20 completion kit, and performing essential function checks. The video emphasizes the importance of proper tools and techniques for a successful custom build, with a focus on troubleshooting common fitment issues.
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