Videos tagged with Ruger MP9 Extractor

This video provides an in-depth analysis of 9mm carbine and submachine gun extractors, comparing designs from the Uzi, Kel-Tec, Ruger MP9, Sten, Sterling, and the presenter's own ROF. The presenter, Mark Serbu, a gun designer, details the importance of extractor holding force, pivot point geometry, spring strength, and hook design for reliable case extraction. He highlights design flaws in his own ROF extractor, including a thin, crack-prone section and insufficient hook engagement, and proposes improvements based on successful designs like the Uzi's.