How Does It Work: Roller Delayed Blowback

This guide details the custom modification process for fitting Heckler & Koch G3 surplus wooden furniture onto an MP5 firearm. The process involves significant DIY work, including cutting and shaping wood components using various tools. The video highlights the challenge of finding aftermarket wood furniture for the MP5 and presents a creative solution for achieving a retro aesthetic. The speaker, an experienced firearms enthusiast, demonstrates proficiency with workshop tools and knowledge of parts interchangeability.

This guide details how Polenar Tactical adapted original HK G3 wood furniture for a Zenith Firearms Z-5RS (MP5 clone). The process involves stripping and refinishing the wood, extensive cutting and Dremeling of the handguard to fit the MP5 profile, adapting a G3 lower receiver, and installing an AC Unity grip. The result is a unique retro-styled MP5 with a classic wooden aesthetic.

This entry details a critical mechanical failure observed with an MP5-style firearm where the charging handle detached during a standard 'HK Slap' manipulation. The video captures the moment the charging handle broke off the bolt carrier assembly. This highlights a potential vulnerability in the firearm's design or a specific component failure, emphasizing the need for careful inspection and maintenance of such firearms.

This guide details the disassembly of the Gerät 06 prototype, focusing on accessing its gas system. It highlights the use of stamped receivers and a specific disassembly method involving a buttstock pin and pivoting trigger group. The video, presented by Ian McCollum, offers expert insight into late-war German firearm development.

This guide details the disassembly and comparison of the Iranian Tondar TK9 submachine gun against its Heckler & Koch MP5 counterpart. Expert Jonathan Ferguson highlights differences in build quality, external features like the muzzle and cocking tube, internal components, and markings. The process involves field stripping and close examination of parts, emphasizing the Tondar TK9's status as a licensed-production variant with notable deviations.

This guide details the reassembly process for the HK MR223 rifle, demonstrating expert handling and safe practices. It covers the step-by-step assembly of the bolt carrier group, upper and lower receiver connection, and essential function checks. The video also shows proper magazine loading with a Magpul PMAG Gen M3 and chambering a round, highlighting the rifle's functionality at an outdoor range.

This guide details the specific technique for separating two MAS-36 rifles that have been inadvertently locked together by their bayonets. It outlines the historical context of this issue, the modification made to the bayonet to resolve it, and the step-by-step procedure for disengagement. The technique requires precise alignment and the use of a pointed tool to access the internal release mechanism, as demonstrated by firearms expert Ian McCollum.

This guide details the loading and firing procedure for the M134 Minigun, as explained by Ian McCollum. It covers manual indexing of the barrel cluster, feeding the ammunition belt, engaging controls, and firing. The guide also touches upon the weapon's spin-down inertia and the function of modern clutch systems. Expert instruction from a recognized firearms historian highlights the technical aspects of operating this powerful weapon system.

This guide details the operational features of the H&K G11 K2, a prototype assault rifle known for its caseless ammunition and unique rotating drum bolt. It covers the selector settings, magazine capacity, integrated optics, and the internal action designed for recoil management during high-rate-of-fire bursts. Expert insights from Ian McCollum highlight the historical context and technical innovations of this advanced firearm.

This guide details the operation of the German L.Gr.W.36 50mm light mortar, as demonstrated by expert Ian McCollum. It covers assembly, leveling procedures, ammunition handling, and live fire execution, emphasizing the difficulty in visually tracking the projectile. The instruction highlights the importance of proper setup for accuracy.