Custom Krieger AR-15 Barrel Tested: Groups, Inspection, Borescope

This comprehensive review of the Noveske Afghan 14.5-inch AR-15 barrel, presented by Preston Moore, details its technical specifications, physical inspection findings, and extensive range testing. The barrel features a cold hammer-forged, chrome-lined bore built to M249 specifications, a mid-length gas system, and a 1:7 twist rate. Performance analysis with various ammunition types reveals its strengths, particularly with heavier match loads, while also noting characteristics like a slightly over-gassed nature.

Elliott Delp provides an expert review of the Sons of Liberty Gun Works (SOLGW) L89 upper and Scalper lower build. The assessment highlights excellent gas tuning, high accuracy, and impressive rail system performance. Range testing confirmed the rifle's reliability and shooting comfort, indicating a high-quality firearm package.

This review details a 500-round reliability test of the Geissele Super Duty 14.5-inch AR-15 build, highlighting exceptional performance with zero malfunctions. The build features premium components like the Huxwrk Flow 762 Ti suppressor and Geissele SSAE trigger, demonstrating tight accuracy and overall system tuning. The assessment comes from an experienced firearms instructor, providing valuable insights into the rifle's capabilities.

Elliott Delp details his custom Geissele Super Duty-style AR-15 build, focusing on achieving high performance and reliability at a competitive price point. The build features a 12.5-inch barrel, Geissele components, EOTech optic, and is optimized for suppression and night vision. Despite its custom nature, the rifle demonstrated impressive sub-MOA accuracy and flawless reliability during extensive testing, justifying its 'hype' for shooters seeking top-tier performance.

Elliott Delp reviews the Radical Firearms RF-15, highlighting it as a budget-friendly AR-15 option. He notes its good handguard and barrel, deeming it accurate and reliable enough for training purposes. The rifle is presented as an excellent starting point for a training rifle.

This review by Mark from Fit'n Fire examines the Aero Precision M4E1 PRO's out-of-the-box accuracy potential. While the rifle demonstrated reliability issues and was overgassed, accuracy testing revealed sub-MOA potential with specific ammunition, suggesting further tuning could optimize performance.

This extensive 15,000-round test reveals the surprising longevity of a Criterion CORE series AR-15 barrel. Despite significant internal wear, including fire cracking and erosion, the barrel maintained respectable accuracy, particularly with 77gr handloads. The test highlights how barrel degradation impacts ammunition sensitivity and emphasizes the importance of rigorous testing methodologies.

This YouTube video thoroughly tests the accuracy of a Ballistic Advantage AR-15 barrel, specifically evaluating if it lives up to its Sub-MOA guarantee. The creator shoots 30-shot groups with four different types of ammunition, analyzing the results to see if they meet the manufacturer's criteria. The video includes a detailed look at the barrel's specifications, a borescope inspection, the range setup, and a comparison of different ammunition performance, concluding with an overall results analysis and leaderboard. The central question is whether the barrel performs as expected for a Sub-MOA rated component.

This video offers an in-depth analysis and accuracy test of the 16-inch Sons of Liberty Gun Works SPR Barrel. It covers the barrel's unique features like its .223 Wylde chamber, 1:7 twist rate, 3-groove polygonal rifling, and 5/8x24 threads. The review includes a borescope inspection of the internal quality, micrometer measurements of external dimensions, and a detailed shooting assessment with three 30-shot groups using different ammunition types (PMC Bronze 55gr, Hornady 73gr ELD Match, Berger 77gr OTM). The analysis focuses on mean radius, group size, velocity, standard deviation, and shooter-induced flyers. A new metric, A-ZED (A-Zone Equivalence Distance), is introduced to practically assess rifle performance at range. The video provides data-driven insights into the barrel's precision and performance.

This video features a head-to-head comparison of two BCM BFH ELW (Enhanced Lightweight) AR-15 barrels. The creator conducts thorough inspections, including borescoping and headspace checks, revealing some unexpected findings. The testing involves shooting 30-shot groups at 100 yards with three different ammunition types: Winchester 55gr M193 FMJ, Frontier 68gr BTHP, and Federal Gold Medal 77gr SMK. Data is collected using a Garmin Zero C1 Pro chronograph and a Mantis X10 Elite, with results analyzed using mean radius and a custom A-ZED scoring system. The video aims to determine the consistency and real-world accuracy of these specific barrel models and whether any bore anomalies correlate with performance.