Seekins Precision 16" AR-15 Barrel Review (A-ZED Test)

This review of the Sons of Liberty Gun Works M4 L89 AR-15 highlights its performance as a mid-tier duty rifle. The reviewer, who built this specific rifle at a Sons of Liberty armorer's course, praises its ergonomics, the quality of its components like the Liberty two-stage trigger, and its accuracy, achieving sub-MOA groups with certain ammunition. The rifle demonstrated excellent reliability over 500 rounds, feeding and ejecting flawlessly with various magazines and ammunition types. The review concludes that the L89 offers significant value, comparing favorably to higher-priced competitors, and is a strong option for those looking to buy or build a reliable and accurate AR-15.

This video provides a detailed performance analysis of a 14.5-inch Noveske N4 stainless steel barrel. The review includes extensive ballistic testing with various ammunition types, measuring velocity, group sizes (MOA), and AZ scores at 100 yards. The presenter, Preston Moore, offers insights into the barrel's accuracy potential and value proposition, comparing its performance to other barrels.

The Ruger Harrier is presented as a competitive entry-level AR-15, addressing previous price and feature concerns from Ruger's earlier AR offerings. It features an updated 15-inch M-LOK handguard with anti-rotation QD points, a 16.1-inch government profile barrel with a 1:8 twist rate, and Magpul furniture. The rifle includes a tension screw for upper/lower receiver wobble reduction and a staked bolt carrier group and castle nut. While the trigger is noted as heavy at 8 pounds, the rifle performed reliably with a variety of ammunition, demonstrating sub-2 MOA potential.

The US Palm Storm Cat 4 is reviewed as a feature-rich AR-15 with a street price around $1,400. While praised for its ambidextrous controls and accuracy with budget ammunition, the reviewer notes a slightly loose upper-to-lower receiver fitment. The rifle demonstrates good performance suppressed and is considered a solid option, though potentially outclassed by higher-end BCM or Daniel Defense models in fit and finish.

This review of the IWI ARAD 5 highlights its practical application as a short-stroke gas piston rifle with AR-15 lower compatibility. The video details its features, disassembly, accuracy testing with various ammunition, and compares it to other piston-driven rifles. The ARAD 5 is presented as an affordable and reliable option for those seeking piston system benefits without sacrificing logistical advantages.

This review examines the Sons of Liberty Gunworks 16" Liberty Fighting Barrel, detailing its construction and performance. The barrel features 4150 chrome moly vanadium steel, 5R rifling, and a DLC coated extension. Testing with various ammunition types revealed mixed results, with the barrel performing moderately with Federal Gold Medal 77gr SMK and poorly with Hornady 73gr ELD Match and PMC X-TEC M855. The reviewer notes some manufacturing artifacts in the chrome lining but finds the barrel extension fit to be firm.

Preston Moore, demonstrating high expertise, provides an analytical assessment of a Criterion CORE series barrel after 15,000 rounds. He details significant internal wear, including throat erosion and fire cracking, using specialized tools like borescopes and erosion gauges. Despite the degradation, the barrel still produced surprisingly acceptable groups with specific ammunition, highlighting its durability and the importance of testing worn components.

This video provides an in-depth review and accuracy test of a Ballistic Advantage AR-15 barrel. The presenter, Preston Moore, details the barrel's specifications, including its Hensley profile, 16-inch length, mid-length gas system, and 1:7 twist rate. He conducts extensive live-fire testing with four different ammunition types at 100 yards, meticulously recording group sizes, velocities, and rifle stability scores using advanced equipment. The results are compared against Ballistic Advantage's sub-MOA guarantee, offering practical insights into the barrel's real-world performance.

This video provides an in-depth accuracy test of the Sons of Liberty Gunworks 16-inch SPR barrel, featuring unique polygonal rifling and a 5/8x24 thread pitch. The instructor conducts 30-shot groups with various ammunition types, meticulously recording data on velocity, rifle stability, and group size using advanced metrics like the A-ZED score. The results demonstrate exceptional accuracy, positioning the barrel favorably against competitors.

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.