Videos tagged with Trunnion Inspection

This review of the Pioneer Arms Sporter 5.56 AK details accuracy testing at 100 yards with various ammunition types, revealing significant inconsistencies and flyers. After 715 rounds, internal inspection shows some peening on the bolt and trunnion, with a notable mushrooming issue on one bolt lug. The rifle appears overgassed, indicated by brass marks on the dust cover, though the muzzle brake effectively manages recoil.

This video details a 1000-round torture test of the Stenzel SAK-21, a high-end AK variant, conducted in under an hour. The test aimed to assess the firearm's durability and reliability under extreme conditions, including sustained firing, high temperatures, and suppressed use. The presenter, an experienced firearms instructor, meticulously documents the process, noting minor hiccups and performing an in-depth internal inspection post-test.

This video provides an in-depth, long-term review of the PSA Krink chambered in 5.56, exceeding 2500 rounds. The presenter, Mark, details his personal experience, noting zero failures to feed, fire, or eject after a chamber polish addressed initial steel case ammunition issues. He meticulously examines internal wear on components like the bolt, carrier, and hammer, offering insights into expected wear patterns and potential concerns for PSA's 5.56 and 5.45 AK platforms.

This review details the first 500 rounds fired through a Riley Defense AK-47 Krinkov-style rifle chambered in 7.62x39. The assessment covers initial impressions, performance with various magazines and ammunition types, and the impact of suppressor use. The reviewer notes initial malfunctions that seemed to resolve as the rifle broke in, and observes minor metal movement on internal components after the 500-round test.

This video details a 'sand tornado' reliability test on a Palmetto State Armory AK74 chambered in 5.45x39mm. After experiencing a bolt-close malfunction due to sand obstruction, the firearm undergoes a thorough disassembly and inspection. The presenter meticulously examines the bolt carrier, bolt, trunnion, and other internal components for wear and damage, concluding with a no-go gauge test to certify it for continued use. The review highlights the rifle's performance under harsh conditions and its internal condition post-testing.

This video from AK Operators Union, Local 47-74, details a heat stress test on the Kalashnikov USA KR103 rifle. The review focuses on point of impact shift due to barrel heating, internal component wear after approximately 1000 rounds, and overall reliability. The presenter, an experienced AK enthusiast, notes minimal POI shift and good internal condition, suggesting the KR103 is a promising platform.

This guide, presented by Brandon Herrera, a recognized AK platform expert, outlines essential quality checks for prospective AK buyers. It covers inspecting trunnions, rivets, sights, barrel wear via the 'bullet test,' and the critical importance of headspace verification using gauges to ensure a safe and reliable firearm.

This video provides a comprehensive post-5000-round review of the Arsenal SLR104 rifle. It details ammunition velocity testing with Wolf 60-grain and surplus 7N6, discusses accuracy limitations attributed to the stock and optic setup, and performs an in-depth internal inspection of the bolt carrier group, trigger, trunnion, and other components. The review highlights zero malfunctions and assesses the durability of the ALG trigger and Arsenal's finish.

This comprehensive review details the performance of a WBP AK47 after 5000 rounds, as presented by Rob Ski of AK Operators Union. The analysis covers accuracy, component wear, and reliability, offering critical insights into the rifle's durability and potential failure points. Ski's high-volume testing and detailed component analysis provide expert-level evaluation for AK enthusiasts.

This review details the performance of a WBP AKM rifle after firing 2,000 rounds. The expert instructor from AK Operators Union conducted extensive testing, including rapid fire and stress simulations, to assess durability. Key findings include minor wear on the bolt and a loose magazine catch rivet, but overall positive performance of the cold hammer-forged barrel and receiver components.

This video details the 1000-round mark of a WBP AKM durability test, including drop tests, mixed-ammunition cycling, and a 300-yard accuracy check. The rifle, initially fitted with polymer furniture, was switched to wood. Internal inspection revealed minor cosmetic wear but no significant functional damage, though a potential ongoing deformation issue with the bolt carrier's dovetail was noted after a modification to the Tapco G2 trigger.