Science says ONLY 2 zero distances are any good?

This guide explains the proper use of threadlocker on firearm accessories. It emphasizes using threadlocker on fasteners for items like optics and flashlights to prevent them from loosening due to recoil and vibration. The video recommends using blue Loctite for most applications, as it provides a secure hold while allowing for disassembly with basic tools. Red Loctite is noted as requiring heat for removal, and purple is suggested for very small screws.

This guide details how to adjust the gas system on the HK MR556 A4, a civilian variant of the HK 416. The rifle features an adjustable piston-driven gas system with two primary settings (Normal/Suppressed) and an advanced 15-position fine-tuning capability. Proper adjustment is crucial for optimal performance, especially when using a suppressor, minimizing gas blowback and ensuring reliability.

This video covers Day 3 of the NRA Show 2026 in Houston, Texas, featuring interviews with attendees and showcasing new products. Key highlights include the Ace Virtual Shooting experience, discussions on Faxon Firearms' products, Fostech's 50 BMG, Sig Sauer's P320 Reserve, and the upcoming Goat Guns GP5 and musket. The event also touched upon suppressor technology advancements and the general atmosphere of the show.

This video explains the Plan B mount system used by Lantac suppressors, specifically demonstrating its compatibility with the Lantac Dragon 556 muzzle brake. The presenter highlights the modularity of the Plan B mount, allowing users to switch suppressors between different firearms that utilize the same mounting configuration. The internal threading of the muzzle brake and subsequent baffles is shown, emphasizing the standardized interface.

This video showcases a Daniel Defense MK18 pistol chambered in 5.56 NATO with a 10.3-inch barrel. The presenter details various attachments, including an EOTech optic, Streamlight Protac weapon light, and an angled foregrip, highlighting the quad rail system and a rubberized grip for enhanced handling. Notably, the presenter discusses the firearm's smooth shooting characteristics and a perceived heaviness in the trigger during adverse weather conditions, suggesting potential environmental impact on AR-15 performance.

This video features a social media experiment where three gun tubers (Ian McCollum of Forgotten Weapons, Karl Casarda of In Range TV, and Administrative Results) independently rank four iconic rifles for militia use: the FN FAL, HK G3, AR-15, and AK-47. The consensus among the experts is that the AK-47 is the superior choice for arming untrained conscripts due to its simplicity, reliability, and ease of maintenance, while the FN FAL and HK G3 are deemed too powerful and complex for such a role. The AR-15 is considered good for trained soldiers but less ideal for a ragtag militia.

This video provides a basic introduction to shooting for a first-time user, focusing on the .44 Magnum and a 1911 pistol. The instructor, identified as an experienced shooter and content creator, guides a beginner through safe handling and shooting techniques, emphasizing proper grip and recoil management for the powerful .44 Magnum. The content is high-energy and informal, suitable for new firearm enthusiasts.

This video showcases shooting various firearms including Glocks, Sig Sauers, and 1911s. The instructor, demonstrating experienced authority, highlights the performance of Glocks and Sig Sauers in rapid fire scenarios and discusses the potential reliability issues with some 1911 models, particularly a custom build. The video concludes with a demonstration of a .44 Magnum revolver.

This video demonstrates firing techniques for the MK19 Grenade Launcher, emphasizing target identification and recoil management. An experienced instructor provides guidance on adjusting aim and reducing shoulder pressure for improved stability and accuracy. The demonstration highlights the weapon's blowback operation and impact spread during bursts.

This video showcases a diverse collection of Glock pistols, including the G45, G19, G48, G49, and the rare G17L. The host demonstrates shooting techniques with various models, including dual-wielding the G48s and using Trijicon SRO optics. Notably, the G17L experienced a stovepipe jam, and a Taran Tactical Innovations custom Glock exhibited multiple malfunctions, highlighting potential issues with specific firearms or ammunition. The content is presented with an experienced and entertaining tone.