Daniel Defense AR15, 2500 Rds Later: Died in my Arms...

This expert guide from the School of the American Rifle details how to identify and address rough carrier key bores in AR-15 bolt carrier groups. The instructor, demonstrating expert knowledge, explains how these manufacturing defects, particularly on Colt components, can lead to premature wear on the gas tube and reduced reliability. Solutions involve replacing the defective carrier key to ensure smooth operation and longevity of the firearm.

This video delves into the history and technical aspects of Colt's four-way enhanced rifle fire control group, a system offering Safe, Semi, Auto, and Burst modes. The expert instructor, with extensive experience at Colt, details the evolution of the burst cam, patent information, and specific rifle models that utilized this complex mechanism. It highlights practical challenges and historical context, including issues faced by the Greek Army and the eventual discontinuation of the program.

This guide details the installation and function of the SpeedTac Bolt Carrier, highlighting its design to eliminate magazine tension during closed-bolt reloads. The video emphasizes this as a significant advancement for AR-15 platforms, potentially offering a competitive edge. The presenter, with an instructional and experienced tone, suggests this feature should be standard on all AR-style rifles.

This guide details the installation of the BS Squirts drop-in Forced Reset Trigger (FRT) for the AR-15 platform. It covers the initial safety checks, the installation process, and functional testing in both semi-automatic and simulated full-auto modes. The video emphasizes verifying the trigger's operation after installation, ensuring it functions correctly and safely within legal parameters.

This guide details how to inspect an AR-15 Bolt Carrier Group (BCG) for critical defects, specifically peening marks on the carrier rails. Instruction from School of the American Rifle highlights how improper peening can lead to significant damage to the upper receiver. Proper inspection is crucial for ensuring BCG longevity and firearm safety.

This guide details the process of replacing the buffer and spring assembly in an AR-15 platform rifle. It covers disassembly, removal of the old components, installation of new parts like the Kynshot RB5000 hydraulic buffer or the Geissele Super 42 system, and reassembly with a function check. The video emphasizes proper technique and the benefits of upgraded components for recoil management and reliability.

This comprehensive guide, presented by AK Operators Union's Rob Ski, details the field stripping and basic maintenance procedures for the AK47 platform. It covers essential steps from initial inspection and disassembly to cleaning, lubrication, and reassembly, emphasizing common AK quirks and best practices for reliability. Rob Ski, a recognized subject matter expert, provides practical advice for both new and experienced AK owners.

This guide details the field stripping and reassembly process for the SVD Dragunov rifle, as demonstrated by an expert from AK Operators Union. It covers removing the dust cover, recoil spring, bolt carrier group, gas tube, and barrel/receiver assembly. The speaker highlights the quality of original components and the rifle's historical significance.

This guide details two critical field expedient repairs for the AK-47 platform, as demonstrated by Rob Ski of AK Operators Union. It covers using rubber bands to temporarily replace a broken recoil spring and guide rod assembly, and employing a wooden toothpick to retain the firing pin when the retainer pin is lost. These techniques are presented as emergency measures to maintain firearm operability in austere environments.

This video details the results of a 5000-round endurance test on the Palmetto State Armory AR15 Freedom, conducted by Rob Ski of AK Operators Union. The rifle successfully completed the rigorous AKOU endurance test, including the sand tornado test. While accuracy was deemed respectable for a budget platform (2.24 MOA), internal inspections revealed normal wear on components like the cam pin and bolt lugs. The rifle is presented as a solid budget option, with a recommendation to invest in a better barrel for enhanced long-range precision.