Open Source At T.REX ARMS

This video tests the functionality of novelty 3D printed pistol and rifle sights, shaped like a middle finger and an 'OK' gesture. Despite their humorous appearance, live fire tests on a Schmeisser AR15-9 PCC with a Holosun optic demonstrated that these custom sights are surprisingly accurate, grouping shots effectively on target.

This video details the public release of the KF5, a 3D-printed, roller-delayed blowback firearm inspired by the HK MP5. It highlights the design by Ivan the Troll, available on The Gatalog, and mentions sponsorship from KAK Industry. Future developments include 10mm and .40 S&W variants, showcasing advancements in DIY firearm technology.

This video explores the durability of 3D-printed Glock frames using advanced materials like carbon fiber-filled nylon. The host demonstrates that these frames can withstand high-volume, suppressed fire, maintaining structural integrity and a factory-like finish. While a failure occurred due to extreme backpressure, the overall performance indicates carbon fiber nylon is a superior material for printed firearms compared to PLA.

This video explores the lethality and practicality of 3D printed PLA ammunition in 9mm and .45 ACP. Testing revealed significant issues with accuracy, keyholing, and lack of cycling in semi-automatic firearms. While capable of penetrating soft targets at close range, the ammunition is deemed impractical for self-defense due to its low energy and poor performance.

This guide details a custom 'Cyberpunk' build inspired by the Lebman SMG, using a Tisas Night Stalker 9mm. It focuses on attaching a Holosun optic and Armory Craft compensator, and crucially, fabricating a 3D printed angled magazine holder. This holder serves an aesthetic purpose and avoids NFA classification as a vertical grip, demonstrating advanced customization skills.

This video provides an introductory guide to designing and implementing built-in supports for 3D printing, specifically within the context of firearm lower receiver designs. The creator outlines fundamental techniques for creating custom integrated supports, covering aspects such as controlled bridging, support stubs, overall support structure, line width considerations, detailed support structure design, and overhang management. A specific application is demonstrated with "Glock Support." The focus is on enhancing 3D printing success for complex firearm components.

This video showcases advanced carbine fundamentals with the ADM UIC 2, emphasizing target acquisition, accuracy, and transitions. Drills include barricade shooting from unconventional positions and rapid reloads under pressure. The demonstration highlights efficient gear management and fluid weapon manipulation, showcasing a high level of proficiency.

This video showcases advanced dynamic shooting techniques with the FNH SCAR 17, demonstrating its capability in high-intensity drills. Instruction focuses on speed, accuracy, and recoil control while moving and utilizing vehicle cover. The expert-level demonstration highlights fluid weapon manipulation and rapid target engagement.

This video demonstrates advanced 'running and gunning' techniques with the Heckler & Koch HK416 D. It highlights dynamic shooting drills, including rapid fire on steel targets, movement between cover, and seamless transitions between the HK416 and a sidearm. The content also covers preparation, manual of arms, and emergency reloads while engaging targets from unconventional positions.

This video provides a 10-minute guide to fundamental pistol shooting techniques, focusing on semi-automatic firearms like Glocks. Key areas covered include proper sight alignment, a stable grip for recoil management, a balanced shooting stance, precise trigger control, and basic reloading and malfunction clearing procedures. The instruction emphasizes practical application and self-teaching through discipline and range time.