How To Swap Out Any AR-15 Barrel

This expert guide from School of the American Rifle details how to identify and replace a malformed weld spring in an AR-15's delta ring assembly. A misaligned weld spring can cause gas tube issues, leading to potential component damage. The video provides a clear visual comparison and step-by-step instructions for replacement, emphasizing proper alignment for optimal function.

This guide addresses a critical quality control issue identified by Shortshot Tony on a new Daniel Defense Mk18 upper receiver: a loose barrel nut. The video demonstrates how a hand-tight barrel nut leads to significant rail wobble. It highlights the importance of proper torque for AR-15 assembly and compares this failure to lower-tier brands, emphasizing the need for robust quality control even on premium components.

This guide details the process of lapping an AR-15 receiver to ensure proper barrel alignment for improved long-range accuracy. Instructor Stephen Caleb from Brownells explains that receiver faces can be slightly out of alignment, leading to barrel runout. The process involves using a specialized lapping fixture and aluminum oxide lapping compound with a drill to create a perfectly flat receiver face. This ensures the barrel seats flush and square, critical for precision shooting beyond 500 yards.

This guide details the installation of the Blackout Defense Dual Barrel Nut System, a unique mounting solution for AR-15 style upper receivers. The system utilizes primary and secondary barrel nuts with dual taper locking to ensure bore centricity and a highly rigid barrel mount. Proper alignment of internal tapers is crucial for optimal performance.

This guide outlines the conceptual assembly of the unique XR-86 custom rifle, a project by Wilfred Ellis. It details the integration of parts from an M60, M14, and AR-15, highlighting the custom gunsmithing required to combine these disparate systems into a functional firearm. The process involves careful mating of bolt, gas, and trigger mechanisms.

This video provides a detailed, step-by-step guide to building a lightweight precision bolt-action rifle, focusing on the Aero Precision Solus LT action and MDT Hunt 26 chassis. It covers critical assembly procedures such as barrel installation, trigger mounting, headspace checks, scope mounting, and chassis bedding, emphasizing proper torque values and techniques for optimal performance and safety. The build highlights the use of high-quality components for a custom, lightweight precision rifle.

This comprehensive review of the Mossberg 702 Plinkster, purchased for $99 from Walmart, details its features, performance, and value. The expert assessment highlights its practical accuracy for plinking and its surprisingly robust construction for the price point, manufactured by CBC in Brazil. It's presented as a reliable, budget-friendly option for recreational shooting.

This guide details the process of modifying a Hi-Point .45 pistol grip to accept an extended 20-round Redball Sports magazine and troubleshooting potential feeding issues. It covers grip modification, magazine loading, and feed lip adjustments for reliable performance, as demonstrated by an experienced firearm reviewer.

This guide details the analysis of a rifle used in a shooting incident involving Charlie Kirk. It covers identifying calibers by sound, assessing shot distances, comparing rifle models like the Mauser, Weatherby Vanguard, and Thompson Center, and understanding concepts like cold bore shots to evaluate shooter skill. The analysis highlights the .30-06 Springfield caliber and the characteristics of bolt-action rifles.

This video clarifies the confusion surrounding various 7.62mm cartridges, highlighting their distinct origins, applications, and ballistic differences. It details calibers from the 7.62x25 Tokarev pistol round to powerful rifle cartridges like the 7.62x51 NATO and 7.62x54R Russian, emphasizing that despite the shared '7.62' designation, bullet diameters and performance vary significantly. Key firearms like the AK-47, SKS, Mosin Nagant, and AR-10 are associated with their respective 7.62 rounds.