This video addresses issues with KAK NP3 dual ejector bolts, specifically focusing on damaged and bent ejector pins. The instructor demonstrates how bent ejector pins can cause sluggish ejector function and emphasizes the importance of proper installation of roll pins or spiral pins to prevent binding. The content highlights a common problem encountered in AR-15 bolt carrier groups.
This guide details the disassembly and reassembly of an Arisaka Type 30 bolt, focusing on replacing a cracked safety/sear component. The process involves careful compression of the firing pin assembly to separate the split bolt halves and precise reassembly. The video also covers reloading for the .257 Roberts cartridge and troubleshooting sight issues on a sporterized Arisaka.
This guide details the process of replacing the firing pin spring in a Remington 700 rifle. It outlines the use of a cord and dime trick for initial spring compression, followed by a specialized jig for full decompression and pin removal. The steps cover disassembly, spring replacement, and reassembly, emphasizing careful alignment and tension management. The video suggests this maintenance may address accuracy issues, though the demonstration showed minimal impact.
This video details extensive gunsmithing required to repair and improve a Kennedy rifle, highlighting common failure points and John Browning's design principles. The instructor demonstrates how to remake critical screws, repair worn carrier components, and modify the cartridge lifter mechanism to ensure reliable function. The work involves welding, drilling, tapping, and careful fitting to overcome wear and design limitations, ultimately aiming to achieve the reliability of designs like the Winchester 1886.
This video provides an expert-level examination of a battle-worn Berthier 1907-15 rifle, detailing its WWI history through various markings and modifications. Ian McCollum, a recognized firearms expert, explains the rifle's development, colonial use, and its role as a substitute standard infantry arm. The analysis covers production details, arsenal markings, German capture stamps, and evidence of depot-level repairs, offering deep insights into French military logistics and firearm evolution during the Great War.
This guide provides a detailed, step-by-step procedure for fixing a common tight bolt issue on Mosin Nagant rifles, specifically demonstrated on a Finn M39 variant. Expert instruction from Eric of Moss Pawn & Gun details how to identify and rectify the problem by carefully filing and peening the bolt face edges, resulting in a significantly smoother bolt operation. The video emphasizes practical gunsmithing techniques for maintaining military surplus firearms.
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