Videos tagged with Bolt Head

This video provides an expert look at the Daniel Defense DELTA 5 bolt, presented by Product Design Lead Daniel McLeroy. It details the bolt's floating design, removable bolt head, spring ejector, and dog-leg extractor. The DLC coating is highlighted for improving lubricity and reducing cleaning needs, while the 5/16 threaded bolt arm allows for easy customization with aftermarket knobs.

This review delves into Colonel George Fosbery's 1891 pump-action shotgun prototype, a rare piece featuring a sophisticated 6-lug rotating bolt. Despite its advanced design, predating AR-15 bolt technology by decades, it saw no commercial success due to British sportsmen's preference for break-action designs. The example examined was a modified rifle, highlighting Fosbery's innovative, albeit commercially unsuccessful, approach to firearm mechanics.

This video showcases the impressive speed and effectiveness of a super-expensive tungsten carbide, through-coolant drill bit being used to create firing pin holes in BFG-50 bolt heads. The description highlights the difficulty of drilling high-strength alloy steel and uses a humorous analogy of being accused of witchcraft if this technology were shown centuries ago. The drill's performance is presented as almost unbelievable due to its speed and capability on tough materials.

This video provides a detailed guide to disassembling and reassembling the Mosin Nagant bolt, focusing on the M39, M38, M44, 91/30, M91, and Dragoon variants. It covers removing the bolt head and connector, unscrewing the firing pin using a block of wood to compress the spring, and reassembling by aligning with factory index marks. The process highlights the Mosin's machining compared to other rifles like the Swiss K31.