Hammer follow can easily cause a gun to go full auto.[1] Yes it's not as reliable as a sear designed for full auto, but it can work surprisingly well on blowbac

Hammer follow can easily cause a gun to go full auto.[1] Yes it's not as reliable as a sear designed for full auto, but it can work surprisingly well on blowback actions. The original comment was about handguns specifically, and was likely a reference to auto sears on Glocks. The combination of striker-fired and reciprocating slide makes it very easy to trip the sear at the right time, giving you better reliability than simply disabling the disconnector. This tweet has a useful diagram showing how Glock auto sears work.[2] The ATF did restrict the manufacture of new guns that fire from an open bolt (since they are trivially made full-auto), but old open bolt guns aren't classified as machine guns. 1. https://www.youtube.com/watch?v=qc2xpGQ_8w8&t=250s https://www.youtube.com/watch?v=qc2xpGQ_8w8&t=250s (just FYI this guy swears when his gun accidentally goes full auto) 2. https://twitter.com/keegan_hamilton/status/1507430901877129219 https://twitter.com/keegan_hamilton/status/15074309018771292...