Building AK's with your hands: M13 Industries

This guide details the process of replacing the mainspring on a Swiss Luger 1900. It covers identifying a failed mainspring, the correct direction for removal, manipulating the grip safety, compressing and installing the new spring with safety precautions, and reassembly. The new spring is noted to be significantly stiffer, requiring a specific operational technique for this model.

This guide details the disassembly process for the gas trap variant of the M1 Garand, highlighting its differences from the later, more common models. It involves removing the bolt and operating rod first, then a specific screw to release the gas trap, followed by the sight block, before the gas trap assembly can be rotated off. This early design proved less reliable than the later gas piston system.

This video showcases the installation of a three-position Force Reset Trigger (FRT) on an Arsenal 107 SBR AK platform. The presenter demonstrates the functionality of the FRT, highlighting its semi-automatic, force reset, and full-automatic modes. The video also includes a brief test firing session with both supersonic and subsonic ammunition to illustrate potential differences in recoil and sound.

This guide details the process of fitting and trimming an aftermarket rail intended for a 6-inch barrel Colt Python to a 4-inch barrel model. The primary challenge is the difference in barrel ramp angles, which prevents a flush fit. The process involves cutting the rail to size and applying a finish to the exposed metal.

This guide details the installation of Slick Shot stainless steel nipples on a Pietta 1860 black powder revolver. The upgrade aims to improve reliability by preventing cap fragments from jamming the cylinder and potentially enhancing ignition consistency due to a larger internal passage. The process involves unscrewing old nipples and installing the new ones, with a specific note on using Remington #10 caps.

This guide details the process of upgrading Colt Grizzly and Kodiak revolvers by replacing rubber grips with aftermarket wood grips and installing a fiber optic front sight on the Grizzly. The speaker emphasizes the aesthetic and functional improvements gained from these modifications, noting that parts interchangeable with Colt Pythons will also fit these models. The process involves careful removal of old parts and precise installation of new ones, including the use of Loctite for sight security.

This guide details the technique for firing and reloading the Yugo SKS M59/66, as demonstrated by Klayco47. It covers the use of stripper clips for rapid magazine loading and emphasizes the rifle's accuracy potential. The demonstration highlights efficient operation of this classic surplus firearm.

This guide details the technique for firing and cycling the Spanish Cetme FR8 rifle, as demonstrated by Klayco47. It covers manual loading, chambering via bolt action, aiming with iron sights, firing a suppressed shot, and ejecting the spent casing. The demonstration emphasizes proper bolt manipulation and effective use of the rifle's iron sights.

This video details a high-volume fire stress test on a Palmetto State Armory AK-47, pushing the firearm to its limits. Klayco47, a recognized authority in AK-47 testing, demonstrates the rifle's resilience as its polymer handguards ignite and burn during sustained firing. The test progresses to using a 75-round drum magazine, showcasing the AK's ability to function despite extreme heat and visible flames, highlighting the robust nature of the platform under duress.

This video showcases a Palmetto State Armory Spiker AK undergoing a high-stress, full-auto firing test. Instructor Klayco47 demonstrates the potential for thermal failure, with the wooden handguards igniting due to extreme heat buildup. The content highlights the importance of understanding firearm limitations under sustained firing conditions.