This TFBTV episode critically examines the Springfield Armory Saint Edge ATC, an AR-15 variant featuring a monolithic lower. The reviewer, Hop, questions its high price point, attributing much of the cost to its aluminum construction. The video promises a thorough accuracy test to determine if the rifle justifies its premium cost. Topics covered include the design and features of the ATC, its performance in accuracy testing, and its takedown system.
This video announces a limited run of KE Arms KP-15 monolithic polymer lowers in OD Green, a color similar to Magpul green. KE Arms is releasing 3,000 units, expected to ship in about four weeks, and pre-orders are available on their website. Brownells will also offer the WWSD-2021 lower in OD Green. The presenter showcases the KP-15 lower paired with a Brownells BRN-605 reproduction, noting its aesthetic appeal with OPD camo tape on the upper assembly.
This video explores the history of the monolithic polymer AR-15 lower receiver, tracing its origins from early Colt prototypes in the late 60s/early 70s to its development and refinement by Cavalry Arms in 2000. It details how the design was later acquired by GWACS Armory and eventually revitalized by KE Arms with their KP-15 lower. The discussion highlights the material advantages of glass-filled Nylon for this specific design, which differs from attempts to simply make standard AR receivers from polymer due to inherent structural weaknesses. The video examines the engineering challenges and solutions throughout the evolution of this unique AR-15 component.
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