Prototype 1 in 6'' Twist Green Mountain AR-15 4150 CMV CL Barrel Test (HD)

This comprehensive review by Preston Moore, an expert firearms instructor, details the inspection and rigorous 30-shot accuracy testing of a Colt 6520 16" pencil barrel. The analysis includes detailed measurements, bore inspection, and comparative performance data with Federal Gold Medal 77gr Sierra MatchKing, PMC X-Tac M855, and ADI World Class 69gr Sierra MatchKing ammunition, providing valuable insights for AR-15 enthusiasts.

This review provides an in-depth look at the Green Mountain 12.7" AR-15 barrel, including detailed borescope analysis and accuracy testing with various ammunition types. The expert assessment highlights potential issues with gas port size and machining, while also evaluating the barrel's performance for its price point. It's recommended for those seeking a budget-friendly option for general use or 'blasting'.

This video provides an in-depth review of a 14.5-inch Hodge Defense AR-15 barrel, manufactured by FN. The reviewer details the barrel's technical specifications, performs extensive accuracy testing with various ammunition types, and analyzes the results using advanced metrics like AZ score and mean radius. The testing protocol emphasizes simulating real-world conditions, including heat buildup from sustained fire.

This video provides a detailed review and testing of a Criterion 16-inch HBAR AR-15 barrel. The presenter covers the barrel's specifications, conducts a thorough inspection including chamber and bore scoping after approximately 1,000 rounds, and performs range testing with three different ammunition types. The testing focuses on accuracy, velocity, and signs of wear, revealing interesting performance characteristics and potential pressure signs.

This video provides a detailed review of the Rosco K9 16-inch AR-15 barrel, including its technical specifications, inspection findings, and performance testing with three different ammunition types. The reviewer highlights mixed results, with the barrel performing well with Federal Gold Medal 77gr but poorly with Winchester M193, suggesting potential ammunition sensitivity and heat-related degradation. The analysis offers valuable insights for AR-15 builders and shooters.

This video provides a detailed comparison of two BCM ELW (Extreme Lightweight) barrels, examining their manufacturing consistency and on-range performance. The presenter conducts thorough bench inspections, including gauging, weighing, and borescope analysis, highlighting potential manufacturing variations. Live-fire testing involves 30-shot groups at 100 yards with various ammunition types to assess accuracy, velocity, and consistency, offering insights into the practical performance of these lightweight barrels.

This entry details a concerning incident involving ATF agents and a US Navy sailor, highlighting critical aspects of firearms law, NFA regulations, and individual rights during law enforcement encounters. It emphasizes the importance of documentation, legal counsel, and understanding seizure procedures. The expert analysis underscores the potential for overreach and the need for vigilance in protecting legally owned property.

This video provides an expert-level analysis from Mrgunsngear on selecting firearms to confront groups of armed violent criminals. It covers handguns, shotguns, pistol caliber carbines, and rifles, emphasizing the AR-15 as a highly effective platform for home defense scenarios. The instruction highlights the importance of capacity, accuracy, and terminal ballistics when facing multiple threats.

This video from Mrgunsngear Channel, featuring an expert speaker with deep knowledge of FFL reporting and the Gun Control Act of 1968, discusses ATF agents conducting door-to-door inspections without warrants. It highlights that homeowners possess Fourth Amendment rights and can refuse entry or inspections without a warrant, advising viewers to request a warrant or contact an attorney if approached by agents. The content emphasizes the legal framework surrounding multiple firearm purchases and straw purchasing.

This comprehensive guide from Mrgunsngear details a standard post-range cleaning and lubrication routine for AR-15 series rifles. It emphasizes safety, proper disassembly, effective cleaning techniques using CLP and specialized tools like the CAT M-4, and strategic lubrication points for optimal function and reliability. The instruction is presented with high authority, drawing on practical experience.