Seekins Precision AR-15 Barrel Review

This video provides a detailed review and performance test of a 20-inch HBAR barrel from Bear Creek Arsenal. The presenter conducts a thorough inspection, covering material specifications, chamber dimensions, and internal condition using a borescope. Extensive range testing with three different ammunition types, including 30-shot groups, is performed to evaluate accuracy, velocity, and rifle stability. The results are analyzed using metrics like MOA and AZ score, offering a comprehensive performance assessment.

This review of the FM Products FM-15 Gen 2 highlights its unique AR-15 design featuring an integrated telescopic stock mechanism within the upper receiver, eliminating the need for a traditional buffer tube. The rifle is exclusive to Brownells and was developed by former Wilson Combat engineers. Key features include a billet 7075 T6 aluminum receiver, a non-reciprocating front charging handle, an adjustable gas system with three positions (standard, suppressed, adverse), and a taper-lock barrel nut for enhanced sturdiness. The reviewer notes its lightweight, soft-shooting characteristics and good accuracy, particularly when suppressed, though suggests an upgraded trigger would be beneficial.

This video details a custom AR-15 build featuring a Criterion Core 11.5-inch barrel, highlighting its balanced profile, 4150 steel construction, and chrome-lined bore. The build incorporates a Rifle Speed adjustable gas block for tuning, a Geissele MKV rail for rigidity, and discusses the performance characteristics of the Criterion barrel with various ammunition types, achieving sub-MOA with match-grade loads.

This video provides an in-depth review of the Geissele 18" SPR cut-rifled barrel. It details the barrel's unique features, including the phased raid gas system and larger thread diameter. The review includes detailed bench inspection, headspace gauging, and extensive range testing with four different ammunition loads, presenting group sizes, velocities, and AZE scores for each.

This review covers the OpticsPlanet Exclusive Aero Precision ATLAS R-ONE upper assembly, highlighting its premium quality at an affordable price point. The presenter emphasizes the 223 Wylde chambering for its accuracy and ability to safely fire 5.56 NATO rounds, along with the 16-inch 416R stainless steel fluted barrel. The ATLAS R1 rail system is praised for its design and functionality, particularly the integrated Picatinny section for accessory mounting.

This video provides an in-depth review of the American Defense Manufacturing (ADM) UIC MOD 2 carbine. The instructor highlights its lightweight design, fully ambidextrous controls, and high-quality components. Key features discussed include the Criterion barrel, ADM's unique buffer system, and its impressive accuracy with specific ammunition types.

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.