This guide details the installation and testing of the Dead Foot Arms underfolding stock system on an AR-15 platform, specifically demonstrated on a Palmetto State Armory KS-47. The video highlights the process of replacing the standard buffer tube with a proprietary shortened system to enable AK-style underfolding capability. It also covers crucial range testing, revealing that while the system allows for firing with the stock folded, it can lead to cycling failures due to port cover interference, making it impractical for folded fire. The expert instruction emphasizes understanding the mechanical differences and potential limitations of such modifications.
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