This comprehensive 6,000-round review of the Brownells BRN-4 upper receiver, conducted by Regular Guy Training LLC, highlights its reliability and performance, particularly when suppressed. The instructor, Chris, emphasizes its well-gassed barrel, smooth cycling comparable to mid-length ARs, and consistent accuracy across various ammunition types. He notes its robust construction, minimal carrier tilt, and effective operation in adverse conditions, making it a viable option for long-term use.
This video showcases a heavily customized Maxim Defense PDX, styled after the HK416, chambered in 5.56/.223. Expertly modified by CMA Store and reviewed by Lady Sharpshooter at Tiger Tac Academy in Thailand, the build features premium components like a Geissele handguard, EOTech optic, and B5 Systems stock. The review highlights its exceptionally flat shooting and minimal recoil, earning a perfect score.
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