Cryptic Coatings Bolt Pieces Tested Against Steel-Cased Ammo

This video discusses a potential issue where the heavy bolt of the SIG Sauer MPX firearm can cause damage to FRT (Forced Reset Trigger) triggers. A meeting with an FRT manufacturer confirmed that the MPX's bolt can 'smash' the hammer of the FRT trigger, leading to breakage. The speaker expresses surprise at this harshness, despite acknowledging the MPX as an excellent firearm.

This video provides an expert-level breakdown of the piston-driven AR-15, comparing its operation to the traditional direct gas impingement system. The host, demonstrating high authority, uses 3D renderings and technical explanations to illustrate how the piston system cycles the action, pushing fouling forward and away from the core components. It's noted that this design shares some operational similarities with the AK-47, earning it the moniker 'AK in AR clothing'.

This video features an in-depth cold weather gun testing experiment focusing on cleanliness and lubrication. Ivan Loomis examines various firearms, including the 300 Blackout, Sons of Liberty Gun Works rifles, a Griffin Armament Mark 2, a Primary Arms dissipator, and a Q Sugar Weasel. The test guns are detailed, along with their configurations and accompanying tactical gear. The video recaps the experiment's results, discusses critical cold weather shooting considerations, and concludes with the findings from lubricant testing, providing valuable insights for firearm owners operating in frigid conditions.

This Geissele Super Duty upper receiver endured 100,000 rounds, revealing critical wear points. Significant findings include a worn cam pin cutout in the upper receiver, a 'shot out' barrel with eroded gas port and throat, and multiple component failures in the Bolt Carrier Group (BCG), such as broken extractors and ejector springs. The gas key also showed severe erosion and leakage.

Cody Foster, Lead Design Engineer at FN America, details the significant upgrades in the Gen 2 SCAR platform. Key improvements include an extended M-LOK handguard, a new two-piece bolt carrier group with a hydraulic buffer for reduced recoil, and fully ambidextrous controls. The Gen 2 is designed for enhanced modularity and user maintenance, with many components backward compatible with legacy SCAR rifles.

This video compares brass-cased and steel-cased ammunition for rifle use, addressing common myths and concerns. USCCA Director of Content Kevin Michalowski explains the differences, pros, and cons of each type, specifically discussing potential damage to an AR-15's bolt carrier group or barrel and issues with lacquer-coated steel ammo. The content concludes that steel-cased ammunition is acceptable for plinking and training with rifles like the AR-15 and AK-47. A giveaway is also promoted.

This Walther PPK/S review highlights its return to the market, featuring a hybrid American frame and German slide to bypass import restrictions. The .380 ACP pistol boasts a classic design with integrated sights, a DA/SA trigger, and a slide-mounted safety/decocker. It includes two magazines, one with a finger rest, and a unique extended beavertail to prevent slide bite.

This AR-15 build, featuring high-end components like F1 Firearms receivers and a POF Dictator adjustable gas block, suffers from short-stroking malfunctions. Despite an open gas block and lightweight parts, it fails to cycle reliably. The speaker investigates potential issues with the buffer system and carrier group, highlighting the complexity of tuning lightweight AR builds.

The Bersa TPR9C is a modern 9mm evolution of the classic Thunder series, offering a compact design suitable for concealed carry and self-defense. It features a smooth DA/SA trigger with a short reset, ambidextrous controls, and a tactical ledge sight for one-handed racking. The firearm demonstrates good ergonomics and full case support in the chamber.

This review covers the Smith & Wesson Performance Center Pro Series Compact 1911 in 9mm, highlighting its 8+1 capacity, bull barrel, and scandium frame. The firearm features a slim profile, ambidextrous safety, and a rounded butt for concealed carry. While the trigger is noted as suitable for carry, caution is advised with reloads due to a partially unsupported chamber.