100 Year Old Cash Register Is Locked Up Tight!!!

This entry details the Stuff & Things 'Stizon' kit, a conversion for 9mm AK-style firearms designed to mimic the PP-19 Bizon. It features a 58-round helical drum magazine and is compatible with several platforms like the KUSA KP9 and PSA AKV. While visually impressive and functional as a range toy, the kit exhibits reliability issues common to helical drums, making it unsuitable for serious competition or duty use according to expert Ian McCollum.

This guide details the process of mounting a Kalashnikov USA KP9 onto a Unitree Go1 robot dog for remote firing tests. It emphasizes safety protocols, including the use of single-round magazines for initial testing, and addresses the technical challenges of balancing and recoil management. The process involves secure mounting, system checks, and controlled live-fire evaluations, drawing on expertise from firearm manufacturer Brandon Herrera.

This guide details the installation of common accessories on a Kalashnikov USA KP9, as demonstrated by a high-tier tactical entertainment influencer. It covers mounting a Delta Tech muzzle device, Ultimak rail, Modlite light, and EOTech sight, providing a practical overview for enhancing the firearm's functionality.

This video from DemolitionRanch, hosted by Matt Carriker, explores the capabilities of high-powered, regulated air rifles like the AirForce Texan SS and Sam Yang Dragon Claw. Carriker demonstrates their impressive power, accuracy, and surprisingly quiet operation due to integrated suppressors, highlighting a legal loophole where these airguns and their suppressors are not subject to NFA regulations. The content showcases ballistics testing and comparisons, emphasizing the expert knowledge of the host in firearms and related legalities.

This video features Nicholas Irving, a former Special Operations sniper, demonstrating and discussing various high-powered firearms. Irving, author of 'Way of the Reaper,' shares insights on sniper rifles like the Barrett M107A1 and SR-25, discusses the recoil of the S&W 500 Magnum, and tests the penetration capabilities of different calibers against an engine block. The content highlights practical applications and the effectiveness of these weapons in tactical scenarios.

This video demonstrates the dangerous consequences of firing incorrect ammunition calibers in firearms. Experienced instructor Matt Carriker shows how .380 ACP in a 9mm firearm and 9mm in a .40 S&W firearm can lead to cycling failures and severe brass deformation due to improper headspacing. The experiment highlights the critical importance of using the correct ammunition for each firearm to ensure safe operation and prevent damage.

This video from DemolitionRanch, featuring firearms expert Matt Carriker, tests the ballistic resistance of Flex Tape when used as improvised body armor. The experiment involves layering Flex Tape onto cardboard and testing its effectiveness against .22 LR, 5.7x28mm (FN PS90), and 9mm (CZ Scorpion Evo 3 S1) rounds. The results demonstrate that even extensive layering of Flex Tape is insufficient to stop common firearm calibers, highlighting the importance of proper ballistic materials.