S&W M&P 15 Sport III Secret Shopper - Coming Next Week

This YouTube video announces the upcoming Secret Shopper Series, with a focus on the Smith & Wesson M&P Sport 3. The title clearly indicates that this firearm will be featured in the next installment of the series. While the description is minimal, it directly points to the inclusion of this specific S&W model. Viewers can expect a review or evaluation of the M&P Sport 3 within the context of the "Secret Shopper Series."

This YouTube video identifies the top-selling firearms as of mid-September 2024, covering handguns, rifles, and shotguns. The creator highlights the dynamic nature of the gun market, where best-selling lists fluctuate monthly. The video aims to showcase which specific models and types of firearms are currently most popular among consumers. It also includes calls to action for liking and subscribing to the channel, along with social media links and a disclaimer regarding footage sources.

This video features a review of the Smith & Wesson M&P 15 Sport III rifle, highlighting its features as an entry-level AR-15. The reviewer discusses the free-floated 16-inch barrel with a 1:8 twist, A2 flash hider, low-profile gas block, M-Lok rails, Picatinny rail for optics, A2 grip, and collapsible stock. The importance of the first AR-15 purchase is emphasized, noting the rifle's modularity and accessory ecosystem. The video also mentions the inclusion of a Crimson Trace LPVO optic and a Mission First translucent magazine. The M&P 15 series' reputation for quality and affordability is reiterated with the Sport III model.

This video details the diagnosis and repair of a feeding issue on a Sons of Liberty Gun Works East India upper receiver. The root cause was identified as a sharp burr on the barrel extension's feed ramp, causing rounds to jam. The solution involved polishing the feed ramps and adding a secondary bevel, replicating Colt's design, which successfully resolved the malfunction.

This video demonstrates the internal mechanics of an AR-15 bolt carrier group using cutaway models. It highlights the importance of internal bore dimensions for gas system efficiency and explains how to diagnose potential issues like gas leaks. The demonstration covers the cycle of operation, critical seals, and common manufacturing defects, offering advanced insights for AR-15 maintenance and troubleshooting.

This video provides a detailed autopsy of a faulty AR-15 Bolt Carrier Group (BCG). The analysis reveals critical manufacturing defects including an undersized bolt tail failing gauges, excessive firing pin protrusion causing pierced primers, an oversized firing pin hole, and an oversized cam pin hole leading to headspace issues. These flaws significantly compromise the BCG's function and reliability.

This video demonstrates a specialized technique for swapping an AR-15 rear takedown pin without full firearm disassembly. It highlights the use of a custom-fabricated tool, often made from a 1/16 inch Allen wrench, to depress the detent. The method allows for efficient pin replacement, particularly useful on rifles with staked castle nuts, by leveraging the old pin to guide the new one into place.