Videos tagged with Mark Serbu

Mark Serbu, a firearm designer with extensive experience, reviews a 9mm AR-15 upper. He details the use of Glock magazines with a magwell adapter and analyzes the impact of bolt velocity on trigger slap, particularly in full-auto configurations. Serbu demonstrates how a heavy buffer and stouter spring can significantly reduce the rate of fire and improve handling, comparing it to factory Colt designs and noting the jarring bolt impact even in semi-auto.

This guide details the process of stamping sheet metal, specifically 4130 annealed steel, for firearm components, as demonstrated by Mark Serbu. It covers preparation, lubrication, the stamping process using a hydraulic press, and troubleshooting common issues like misalignment and material shifting. The content highlights the precision required and the challenges in designing simple dies for complex bends, emphasizing learning from failures in engineering.

Mark Serbu, a recognized gun designer and owner of Serbu Firearms, discusses his recent appearance on the 'Oh Great This Show' podcast. The episode delves into industry insights, the history of Serbu Firearms, and personal anecdotes about overcoming past challenges. Serbu encourages listeners to engage with the podcast content and share their feedback.

The Serbu Super Shorty, initially deemed 'dumb' by its creator Mark Serbu, became a popular product for Serbu Firearms. This 12 Gauge AOW shotgun features a folding foregrip for recoil management and is designed for close-quarters use, not precision. Live fire testing reveals significant recoil, emphasizing the need for forward pressure on the grip for control.

This YouTube video features a firearm that is currently unidentified, hence labeled a 'mystery gun.' The creator expresses hope for the ability to produce a more detailed video on this firearm for YouTube. As a backup or alternative platform, they also mention that a more in-depth video will be available on Rumble. The provided Rumble link directs viewers to the creator's profile on that platform.

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 review details a custom 10mm firearm built by 'Trenches' from the Weapons Guild, featuring a lever-delayed blowback action inspired by the FG42. Mark Serbu analyzes its unique construction from off-the-shelf parts and a modified M3 Grease Gun magazine. He highlights the mechanism's 'momentum amplifier' effect but also points out design flaws in the lever's discontinuous movement causing high stress and reliability issues, suggesting potential improvements.

Mark Serbu details a Vigneron machine gun parts kit, emphasizing its legal status as a non-functional assembly. He delves into the engineering challenges of rebuilding the receiver tube, material sourcing for metric-spec tubing, and the intricacies of the sear and trigger mechanisms. The review also covers the stock, magazine, bolt, and a unique double-rate recoil spring, concluding with a need to fabricate a charging handle.

This video details the process of stamping steel upper receivers for the Diabolos rifle, transitioning from machined aluminum for improved durability and manufacturing speed. It covers press setup, specialized lubrication, die construction using repurposed gun barrels and ASTM A36 steel, precision machining for alignment, and TIG welding techniques. The demonstration highlights the efficiency of stamping steel over traditional machining for this application.

The RN-45 is a custom-built firearm by Royal Nonesuch, featuring a unique blend of parts including a Sten Mark III receiver, M3 Grease Gun bolt, and AK-style stock. High-speed footage reveals feeding issues and occasional misfires due to cartridge bounce in the chamber. The build's rate of fire is confirmed at 465 RPM.

This video provides an in-depth look at various Serbu Firearms, including the compact Super Shorty 12-gauge shotgun and several .50 BMG platforms like the BFG-50, RN-50, and BFG-50A. It highlights the Super Shorty's media popularity, 2+1 capacity, and folding foregrip. The .50 BMG rifles showcase different actions (bolt, break, semi-auto) and price points, with the RN-50 being the most affordable. A unique .22 LR prototype pistol with an internal slide design is also featured.

This review covers the unique Wildebeest pistol, a custom build from Impulse Research designed by Bernard. It highlights the pistol's innovative low bore axis and striker-fired mechanism, currently chambered in .357 Magnum with potential for larger calibers. The discussion delves into its US patent and complex internal design, supported by CAD animations and live-fire footage from Australia.