This expert-level guide details the disassembly of the Ruger Harrier rifle, emphasizing crucial safety precautions throughout. It covers separating the upper and lower receivers, removing the bolt carrier group and charging handle, and further disassembling the bolt carrier group into its core components. The instructions are clear and actionable, suitable for intermediate users seeking to perform routine maintenance.
This video provides a detailed guide for disassembling and reassembling the Bolt Carrier Group (BCG) of an AR-15. It's aimed at beginners and experienced shooters alike, covering the removal and reinstallation of critical components like the bolt, cam pin, firing pin, extractor, ejector, and gas rings. The tutorial also includes tips on inspection and lubrication, making it a valuable resource for in-depth cleaning, maintenance, or repair work on AR-15 style firearms. The video emphasizes a step-by-step approach for ease of understanding and application.
This product spotlight by Brownells Gun Tech Caleb focuses on the SOTAR Cam Pin (SCP) from Forward Controls Design. Developed in conjunction with Chad Albrecht of the School of the American Rifle (SOTAR), this upgraded AR-15 cam pin features a unique dimple for consistent indexing during Bolt Carrier Group (BCG) reassembly. This consistent orientation promotes even wear on the cam pin, extending its service life and, consequently, the overall lifespan of the BCG by preventing accelerated wear on other components. The video highlights the importance of this seemingly small part in maintaining the reliability and longevity of an AR-15.
This Q&A video addresses user questions about Radial Delayed Blowback firearm systems. Topics include recommended buffer weights and springs for .45 ACP builds, cam pin specifications, compatibility of pistol buffer tubes, using PMAG 9mm conversions with MkGs uppers, integrating radial delay bolts/barrels into standard blowback 9mm AR builds, availability of barrel and BCG kits in different lengths, compatibility of MkG lowers with other pistol uppers using Glock magazines, fitment of Glock 9mm drum magazines on the BANSHEE 300 MkGs, and how to use the tuning kit for .45 caliber applications. The video also promotes CMMG Insider and their social media channels.
This YouTube video focuses on the School of the American Rifle's (SOTAR) collaboration with Forward Control Design (FCD) to showcase their Cam Pin. The content likely delves into the specifics of this firearm component, its design, functionality, and potential benefits for AR-15 platform rifles. Viewers can expect insights into the manufacturing quality and intended application of this particular upgrade or accessory for AR-15 owners looking to enhance their firearm.
This video debunks the 'direct impingement' myth for AR systems, explaining they use an internal gas piston within the bolt carrier. It details how gas travels via a tube and key, acting on the carrier and bolt head to cycle the action. The explanation covers bolt unlocking, gas venting, and how bolt carrier mass regulates cycling speed, while also addressing fouling concerns.
This guide details essential range preparation for an AR-15, focusing on proper lubrication techniques as demonstrated by competitive shooter Jerry Miculek. It emphasizes targeting high-stress areas like the cam pin and locking lugs with a heavy-duty lubricant, and applying oil directly to the receiver raceways for extended effectiveness. This preparation is crucial for ensuring reliable function during high-volume shooting sessions.
This long-term review of the Radical Firearms AR-15 reveals critical component failures after 4,310 rounds. The rifle experienced feeding issues and light primer strikes, leading to the discovery of blown gas rings and a snapped cam pin. While performing adequately for the initial duration, these failures indicate the rifle is not suitable for serious use.
This video, featuring Dustin from CIV Tactical, provides a comprehensive guide to the AR-15 and M16 Bolt Carrier Group (BCG). It covers essential aspects including the differences between M16 and AR15 BCGs, gas rings, firing pin protrusion, lubrication, and the functions of the ejector, extractor, bolt face, lugs, firing pin, and cam pin. The video also details the disassembly and assembly process of the BCG, offering valuable information for AR-15 owners and enthusiasts looking to understand and maintain their firearm's core components.
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