7 Barrel 12 gauge ShotGun that fires all at once ... INSANE

This video details a failed attempt at stamping a firearm component using a 120-ton hydraulic press. Mark Serbu, owner of Serbu Firearms, highlights the critical importance of precise material alignment and die design in sheet metal stamping. The demonstration showcases common pitfalls, such as misalignment leading to skewed parts, and the challenges of achieving complex bends with simple dies. Serbu emphasizes that learning from failures is integral to the engineering process.

This video provides an expert-level analysis of a custom-built 10mm rifle featuring a lever-delayed blowback action, presented by firearm designer Mark Serbu. Serbu dissects the unique construction, inspired by historical designs like the FG42, and delves into the mechanical intricacies of the delayed blowback system. He highlights potential reliability issues stemming from the design's 'gear change' action and discusses possible engineering solutions, offering valuable insights for advanced builders and firearm enthusiasts interested in complex mechanical systems.

This video provides an expert look inside a .50 BMG barrel, specifically a cutaway demonstration piece sent to Edwin Sarkissian by gun designer Mark Serbu. It highlights the internal rifling and chamber engagement of a .50 BMG round, offering insights into the mechanics of this powerful cartridge. The barrel also features a personalized engraving from Mark Serbu to Edwin Sarkissian.

This guide details the process of stamping steel upper receivers for the Diabolos rifle, as demonstrated by Mark Serbu of Serbu Firearms. It covers the use of a 200-ton hydraulic press, specialized lubricants like Super Draw 150, precision machining of dies, and TIG welding for assembly. The method highlights the efficiency of stamping over traditional machining for receiver production.

This video provides an expert-level look into the design and function of a custom semi-automatic revolver, a unique build originating from New Zealand. Mark Serbu, a professional gun designer, details the firearm's mechanics, drawing parallels to historical designs like the Webley-Fosbery and Mateba Autorevolver. The build showcases advanced machining and CAD work, culminating in a firing demonstration of its recoil-operated slide and cylinder indexing system.

Edwin Sarkissian showcases a custom-built 7-barrel shotgun, emphasizing its extreme recoil and the necessity of a tripod mount due to the inability to shoulder it safely. The video details the construction using welded steel pipes and a simple striker mechanism, culminating in a live-fire demonstration against watermelons, highlighting its immense destructive power. This experimental firearm is presented with a humorous yet informative approach to extreme ballistics.

This video features Edwin Sarkissian, an experienced firearms instructor, conducting a unique bullet penetration test. He uses 12 Ozark Trail 12-inch cast iron skillets to determine how many rounds from various calibers and firearms, including 9mm, .45 ACP, 500 S&W Magnum, 7.62x39mm, 5.56mm, 5.7x28mm, and 12 Gauge slugs, can penetrate the cookware. The results offer practical insights into the ballistic performance of different ammunition types against a common household item.

This video from Edwin Sarkissian provides an expert-level demonstration of the Serbu BFG-50A rifle's capability against a railroad track. Sarkissian, a high-level firearms enthusiast, showcases the .50 BMG caliber's power with various ammunition types, including the specialized Raufoss Mk 211 Mod 0, highlighting its penetration through thick steel. The content offers valuable insights into terminal ballistics and the performance of heavy caliber rounds.

This video demonstrates a unique application of the X Products Can Cannon, a gas-operated launcher compatible with AR-15/M16 lowers, to launch an M67-style fragmentation grenade using .223 Blanks. Expert experimentalist Edwin Sarkissian showcases the process of loading and firing the device towards a frozen lake, highlighting the launcher's ability to hold the grenade's spoon in place until firing. The demonstration results in a significant explosion and ice shatter upon impact.

This guide details a ballistic test comparing a .50 Cal Spotter round against a 1.25-inch thick bulletproof glass panel using a Serbu BFG-50A rifle. The test, conducted by firearms enthusiast Edwin Sarkissian, demonstrates the significant destructive potential of specialized .50 BMG ammunition, highlighting differences in impact effects between incendiary spotter rounds and standard FMJ rounds. The expert-level demonstration emphasizes the importance of understanding ammunition types and their performance against protective materials.