Videos tagged with Headspace Gauge

This comprehensive inspection of multiple Smith & Wesson M&P 15 Sport II rifles reveals a range of manufacturing and assembly issues. The video details checks for bolt lock, magazine release function, magazine well dimensions, selector engagement, forward assist operation, muzzle device alignment, receiver extension alignment, rail screw torque, takedown pin bores, gas block screw torque, barrel extension alignment, buffer spring length and compression, gas port alignment, headspace, trigger pull weight, castle nut torque, and carrier key alignment. Several firearms exhibited problems including sticky magazine releases, tight magazine wells, misaligned muzzle devices, clocked receiver extensions, undertorqued rail screws, loose gas block screws, short buffer springs, and loose castle nuts.

This video provides an in-depth evaluation of a 20-inch Red Right Hand LMG HBAR AR-15 barrel manufactured by Rosco. The instructor meticulously inspects the barrel's physical characteristics, including dimensions, weight, and bore condition using a borescope. He then conducts extensive live-fire testing with multiple ammunition types, collecting detailed data on velocity, group size, and shooter stability. The evaluation highlights potential quality control issues, such as chrome failure and bore imperfections, while also assessing the barrel's performance in a simulated LMG role.

This video provides a detailed review of the Red Right Hand LLC 20-inch LMG HBAR Nitride barrel, manufactured by Rosco Manufacturing. It covers comprehensive inspection, including gauging and borescope footage, followed by extensive ballistics testing with various ammunition types at 100 yards. The review assesses build quality, accuracy, and performance characteristics, offering insights into its suitability for intended roles.

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 video provides an in-depth review of the Centurion Arms 14.7-inch cold hammer-forged, chrome-lined AR-15 barrel. It details the barrel's specifications, includes a borescope inspection of the chamber, throat, and crown, and presents comprehensive range testing results with three different ammunition types. The review highlights accuracy data, velocity readings, and offers a comparative analysis against other barrels tested.

This video delves into the complexities of AK platform firearms, highlighting common manufacturing defects and build challenges. It emphasizes the importance of quality core components like the trunnion, bolt, and carrier, and warns against relying on budget brands with inconsistent quality control. The discussion also touches on the nuances of different AK variants and calibers, particularly the challenges of 5.56 AKs.

This video debunks the common misconception that the bolt must be fully disassembled (extractor and ejectors removed) to check headspace. Instructors Steve and Caleb demonstrate that for most firearms, including bolt actions and AR-style platforms, headspace can be accurately checked with the bolt intact. They explain that the mechanical leverage involved in closing the bolt negates the minimal resistance from the extractor and ejector springs, and that the ejectors should naturally seat flush. While acknowledging potential extractor interference with some gauges, they offer solutions like using cut gauges or removing only the ejector for peace of mind.

This video details the comprehensive gauging and inspection of a fire-damaged Palmetto State Armory AR-15. The instructor, demonstrating advanced gunsmithing knowledge, systematically checks critical components like the upper and lower receivers, bolt carrier, bolt, and barrel for warpage, undersizing, and wear using specialized gauges. While some components like the upper receiver bore and bolt face require attention, many parts pass inspection, indicating potential for refurbishment.

This video provides an in-depth look at the Noveske manufacturing process, highlighting the meticulous steps involved in creating their rifles. The tour emphasizes the attention to detail from raw materials to finished products, including barrel contouring, chambering, and quality control measures like headspace gauging. The presenter expresses significant admiration for the operation's efficiency and the dedication of the Noveske team to upholding the founder's vision.

This video provides an in-depth physical inspection of a Knight's Armament SR-15 Mod 2 rifle, highlighting its unique design features and proprietary components. The instructor demonstrates specialized tools and techniques required for working on KAC firearms, emphasizing differences from standard AR-15 platforms. Key areas covered include the bolt and barrel extension design, gas system, ambidextrous lower receiver, bolt carrier group specifics, and various dimensional checks for headspace, throat erosion, and alignment.

This comprehensive review of the Palmetto State Armory AK 103, conducted by Rob Ski of AK Operators Union, details the results of a 5,000-round endurance test. The assessment covers accuracy at 300 yards (2.95 MOA), barrel performance, durability after submersion, internal component wear, and critical headspace testing. Ski, a recognized expert in the AK platform, provides an objective and technically focused evaluation, highlighting the FN cold hammer-forged barrel as a key positive feature while emphasizing the importance of consistent quality control in manufacturing.

This video showcases unique Soviet-era AK and SKS gauges, including specialized tools for magazine lips, front sight adjustments, firing pin protrusion, extractors, erosion, and headspace. The instructor explains their utility in accurately evaluating US-made 7.62x39 firearms, where common specifications may deviate from original Soviet standards.