The RN-45!

This YouTube video focuses on the purchase and likely assembly or review of a $230 AR-15 upper receiver from Basement Operator Company. The description highlights the company's offerings, including builds, discount codes, and merchandise, with links to their website and social media. The content emphasizes firearms safety through disclaimers and offers a glimpse into firearm modifications or custom builds, aimed at an audience interested in AR-15 platforms and affordable firearm components.

This review covers a custom-built, ultra-compact 12-gauge shotgun pistol, highlighting its garage-built origins and simple design. Testing reveals significant power and recoil, necessitating mini shells and manual extraction. While potent, its extreme inaccuracy and painful shooting experience render it a novelty rather than a practical firearm.

This video reviews the RN-12 Shotgun Pistol, presented as a unique and potentially damaging firearm, though not practical for everyday use. The reviewer highlights its ability to be constructed from hardware store materials. They discuss its potential as a 'liberator' weapon in adverse scenarios, emphasizing the ubiquity of shotgun shells as ammunition. The video is a collaboration with Richard (Royal Nonesuch).

This video explores the cost-effectiveness of building a five-gun arsenal, suggesting it can be achieved for less than viewers might expect. The title highlights 'budget' and 'cheaper than you think,' while referencing '#fullautofriday,' '#gun,' and '#civtac,' indicating a focus on civilian tactical firearms and potentially automatic fire discussions. The content likely aims to provide practical advice for individuals looking to acquire multiple firearms without breaking the bank, possibly covering different types of firearms suitable for various roles.

This video concludes the RN-50 blow-up analysis, identifying the primary cause as the use of fast-burning pistol powder instead of slow-burning .50 BMG powder. Mark Serbu demonstrates how this error can create pressures exceeding 400,000 PSI, far beyond the rifle's design limits. The analysis includes comparisons with standard .50 BMG loads and even high explosives, using simulations and analogies to explain the catastrophic failure.

This YouTube video features Patrick from TFBTV at SHOT Show 2017, interviewing with 50 Cal Val and Royal Nonesuch. They discuss the RN-50 rifle, the GB-22 pistol (with plans available for purchase), and a potential prototype pistol in development. The video also includes acknowledgments to Ventura Munitions and Proxibid, and encourages viewers to support TFBTV's Patreon page.

Mark Serbu details the complex process of converting a CNC lathe into a 12-barrel blank-firing machine gun. The project highlights the critical role of a lathe's C Axis for precise rotational control and the application of PID control theory to overcome initial firing failures. Modifications were made to ensure the device fires blanks only, avoiding legal issues.

This video demonstrates how to rifle a barrel in a home shop using basic tools, bypassing expensive CNC equipment. It covers material preparation, precise drilling and reaming, and the critical process of pushing a rifling button. While a DIY approach is shown to be possible, the video highlights the significant difference in quality and precision achievable with professional CNC machining.

This video provides an in-depth analysis of the Serbu RN-50 rifle that experienced a catastrophic failure during a Kentucky Ballistics test. Mark Serbu, the designer, meticulously examines the damage, noting severely bent steel side plates, sheared-off breech cap ears, and a sheared pivot pin. The inspection also covers the breech cap's condition, barrel threads, and the stuck casing, revealing a case head separation.

Mark Serbu, designer of the RN-50, addresses a catastrophic failure experienced by Kentucky Ballistics. He reassures customers about the RN-50's safety, attributing the incident to counterfeit or over-pressured ammunition. Serbu highlights the rarity of such events and emphasizes industry transparency, noting that his company has produced approximately 1,400 RN-50s since 2016 with hundreds of thousands of rounds fired without issue.