This video focuses on the intricate machining process of trunnions for the BFG-50A rifle. The creator highlights the challenges encountered, particularly with creating small threaded holes for a patented spoke system, and expresses relief at overcoming these hurdles. The content is aimed at those interested in the technical aspects of firearm manufacturing and CNC machining, promising to share interesting insights for viewers not already familiar with the field.
This Brownells Tech Tip focuses on the innovative feed ramp design of the BRN-180 rifle chambered in .350 Legend. The video highlights how the BRN-180's single, large feed ramp, made possible by its trunnion design, overcomes the feeding challenges often associated with heavier .350 Legend bullets in AR-style platforms. This design is particularly beneficial for enhancing reliability with subsonic ammunition, offering a distinct advantage over the standard AR-15 dual feed ramp system. The content aims to educate viewers on the engineering principles behind this firearm's improved feeding performance.
This video showcases an extremely small tungsten carbide thread mill being used to cut threads on a BFG-50A trunnion. The creator highlights the minuscule size of the tool and expresses a sense of apprehension while using it, inviting viewers to share if they've encountered even smaller tools. The content focuses on a specific machining operation relevant to firearms manufacturing or modification.
This video focuses on the intricate process of separating a trunnion from sheet metal remnants. The creator details using a CNC mill, chisel, and a "death wheel" (likely an angle grinder) to achieve this mechanical separation. The title "Trunnion Harvest!" suggests a focus on acquiring or reclaiming this firearm component.
This video addresses common wear patterns on the bolt and trunnion of an AK-pattern rifle, specifically identifying it as a normal "marrying process" during the initial 1,000 rounds. The presenter shows visual examples of this wear at various round counts (100, 250, 500, 750, 1,000, and 5,000) to demonstrate that it's a sign of the rifle becoming smoother and more reliable, not a defect. The video also touches on headspacing in relation to AK rifles and mentions Palmetto State Armory's lifetime warranty.
This video provides a detailed look at new DDI (Destructive Devices Industries) USA-made AK-47 rifles, featuring hammer-forged trunnions, bolts, and carriers. The footage was captured at the annual IraqVeteran8888 Youtube Shoot in Georgia, offering viewers an up-close inspection of these quality firearms. The description also includes links to the creator's website, merchandise, and social media platforms, along with a standard disclaimer regarding safety and responsible firearm ownership.
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