This video reviews KAK's new quad rail offerings, highlighting their construction from 6061 aluminum with steel barrel nuts and Grade 8 fasteners. The rails feature a slimmer profile than older designs, integrated anti-rotation tabs, and QD sling mount points. KAK also offers complete upper assemblies pre-installed with these quad rails, including suppressor-dedicated options.
This video provides an in-depth look at the Sons of Liberty Gun Works M89 handguard, highlighting its robust construction and unique mounting system. The presenter emphasizes its Type 3 hardcoat anodized finish for durability and aesthetic matching, along with M-LOK compatibility and integrated 45-degree mounting points. The video also demonstrates the handguard's fitment with various barrel lengths (13.7", 14.5", 16") and discusses its secure installation via an angled bolt system and optional anti-rotation pin.
This video reviews the AT3 Pro Quad Rail and receiver set, highlighting its robust construction and unique interlocking design intended to enhance rigidity and prevent rotation. While the rail demonstrated excellent structural durability during extensive drop testing, minor rotation was observed, impacting zero retention. The review compares it to other mounting systems like Geissele and PWS, noting AT3's approach as a strong 'super duty at home' option but not the absolute most secure.
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