World’s simplest gun. Made of 4 parts

Mark Serbu details the design and construction of his Q2 Pistol, a single-day prototype built in 2011. The pistol utilizes a BFG-50 trigger group and features a unique removable falling block action. Serbu discusses material choices like 4142 pre-hard steel for the breech block and 1018 steel for the frame, along with aesthetic design elements and legal compliance through a rifled barrel liner.

This video delves into the lesser-known aspects of the Ruger 10/22 rifle, often overlooked despite its reputation for reliability and affordability. The content creator promises to reveal factory shortcuts, magazine peculiarities, and subtle setup adjustments that significantly impact accuracy, moving beyond the rifle's commonly perceived capabilities. The aim is to showcase modifications that enhance performance and unlock the rifle's true potential.

This video showcases the Freedom Fingers Forced Reset Trigger (FRT) installed on a Taurus TX22, demonstrating an extremely high rate of fire, reaching approximately 1900 RPM. While not practical, it offers a fun range experience. The host details the FRT's mechanics, speed comparisons, and accessory setups, including a Cyelee optic and Goon Beam light.

This video features gun designer Mark Serbu discussing the GB-22 pistol. The content focuses on the design of the GB-22 and a detailed page-by-page walkthrough of its drawings, aimed at individuals planning to build one. It's an in-depth look for those interested in the technical aspects of firearm design and construction.

This guide details how to repurpose a worn AR-15 receiver set into a dedicated .22 LR build, a project undertaken by Hop due to excessive assembly and disassembly. The video highlights the advantages of dedicated .22 LR barrels over conversion kits and showcases specific components like a CMMG barrel and bolt kit, a Ballistic Advantage rail, and a Catch22 bolt catch for enhanced functionality. It also touches on suppressor performance differences for rimfire applications.

This video title, 'Make ANY GLOCK .22 LR', suggests a modification or conversion process for Glock pistols to fire .22 Long Rifle ammunition. While the description is absent, the title implies a 'Gunsmithing' or 'Modifications' focus, likely demonstrating how to adapt a standard Glock firearm to a different caliber. This could involve discussing specific conversion kits or custom work. The content would appeal to Glock owners and firearm enthusiasts interested in modifying their existing firearms for different shooting experiences, potentially for plinking, training, or cost-effective practice.

This video tests how many cast iron skillets are needed to stop various bullets, from .22 LR to 500 S&W Magnum. Most common handgun rounds like 9mm and .45 ACP are stopped by two skillets. Rifle rounds like 5.56mm and 7.62x39mm also require two to three skillets, while the powerful 500 S&W Magnum penetrates three and is stopped by the fourth. The .22 LR failed to penetrate even the first skillet.

This video tests the penetration capabilities of a .50 BMG rifle, specifically the Serbu BFG-50A, against a section of railroad track. Various .50 caliber rounds, including Raufoss Mk 211 API and silver tip API, were fired. While the rifle and ammunition demonstrated the ability to penetrate even the thickest parts of the rail (over 1.5 inches), bullet deflection and shifting upon impact with the dense steel were observed.

This video demonstrates launching an M67 fragmentation grenade using an X Products Can Cannon towards a distant frozen lake. The Can Cannon, firing .223 blanks, successfully propels the grenade, which detonates upon impact, creating a visible hole in the ice. The experiment highlights the launcher's capability for extreme projectile delivery in challenging outdoor conditions.

This video tests the destructive power of a .50 caliber spotter round against 1.25-inch thick bulletproof glass, comparing it to a standard FMJ round. The spotter round, designed to spark and flash, created a larger crater and more surface damage than the FMJ round, demonstrating its specialized impact characteristics. The Serbu BFG-50A rifle was used for both tests.