How to Function Test an AR-15 Presented by Larry Potterfield of MidwayUSA

This video provides an in-depth look at the Franklin Armory binary trigger system, presented as an alternative for those in states where FRTs are prohibited. The speaker highlights its affordability, especially after recent price drops, and its ability to provide rapid fire capabilities. The installation process is detailed, emphasizing the trigger's dual-mode functionality (semi-automatic and binary) and its potential to enhance range fun, even for new shooters. The speaker, an experienced firearms enthusiast, also touches on other gear like O-site optics and Shellshock ear protection.

This guide details how to address a seized AR-15 upper receiver, a common issue exacerbated by suppressor use and infrequent cleaning. The instructor, with extensive firearms experience, demonstrates a multi-stage approach starting with penetrating oils and progressing to more aggressive chemical cleaners when initial methods fail. The video emphasizes understanding dwell time and the effects of carbon buildup, offering practical solutions for a problem that can render a firearm inoperable.

This clip from the AT3 Tactical Podcast details a cautionary tale about attempting to refinish an AR-15 upper receiver using nail polish, resulting in a poor aesthetic. The discussion highlights common mistakes in firearm customization, such as improper surface preparation and the use of unsuitable materials. It offers advice on proper refinishing techniques, emphasizing cleaning and material selection, and contrasts the failed DIY attempt with professional options like Cerakote. The experience serves as a lesson in firearm modification and the importance of understanding the process before undertaking it.

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 demonstrates the proper installation of a suppressor onto an AR-style rifle using a direct thread method. It emphasizes a secure fit and highlights the visual steps involved in attaching the suppressor to the barrel. The video, from AT3 Tactical, focuses on ensuring the suppressor is correctly mounted for optimal performance and safety.

This video showcases vintage Colt M16A1 parts kits, highlighting their original components including 20-inch chrome-lined pencil barrels with Colt markings, C-marked bolt carrier groups, MPC-marked bolts, teardrop forward assists, and original Colt pistol grips and full-auto trigger groups. The kits include a cut receiver stub, which may bear 'Colt M16' or 'AR-15' markings. The presenter notes that parts are in fair, serviceable condition with expected wear, including potential cracks in handguards and buttstocks.

This guide details a high-speed Cowboy Action Shooting stage, demonstrating expert transitions between a lever-action rifle, dual single-action revolvers, and a side-by-side shotgun. It highlights efficient manual shotgun reloading techniques from a belt carrier, showcasing advanced proficiency in competitive shooting disciplines. The video emphasizes speed and accuracy across multiple firearm types.

This video provides an expert-level demonstration of the Mosin-Nagant M91/30 PU Sniper rifle. It covers visual inspection, the proper loading procedure for 7.62x54R ammunition, and live fire at an outdoor range, showcasing bolt manipulation and recoil control. The demonstration is presented in a silent, ASMR-style format by an authoritative demonstrator.

This guide details the complex process of reboring a Winchester 1885 Low Wall rifle from .32 Rimfire to .357 Magnum, addressing a pitted bore. Expert gunsmith Larry Potterfield demonstrates disassembly, barrel removal, specialized reboring at Delta Gun Shop, chambering, crowning, action conversion, and final marking/finishing. The process highlights advanced machining techniques and specialized tools required for such a conversion.

This guide details the cycle of operation for the Winchester Model 12 shotgun, as explained by Larry Potterfield of MidwayUSA using a cutaway model. It covers loading, safety engagement, firing, extraction, and chambering. The explanation highlights the hammerless pump-action design and internal component interactions, offering valuable insights for gunsmithing and understanding firearm mechanics.