Channel: Si vis pacem , para bellum.

Category: Sports

Tags: how a h&k hk33 worksgundismantlinghk33sgdisassemblyh&k hk33hk33eassemblaget223how it worksharrington & richardsonwogweapondisassemblehk53strippinghk13ma-11ma-12assemblytaking to piecessi vis pacem para bellumhow workstype 11hk33a3hk33a2c-93h&k hk33 how it workspara bellumh&kdisassemblingtakedownhk43hk23world of guns: gun disassemblyworld of gunssi vis pacem

Description: The HK33 is a selective fire weapon with Heckler & Koch's roller-delayed blowback system of operation. It employs a two-piece bolt consisting of a bolt head with a pair of rollers and bolt carrier. Upon firing, the two cylindrical rollers in the bolt head are cammed inward by inclined surfaces of the barrel extension and impart a rearward motion on the locking piece, which also propels the bolt carrier rearward. This built-in mechanical disadvantage delays the movement of the bolt head relative to the bolt head carrier which is withdrawing at significant higher velocity of the bolt head. The rollers soon compress entirely into the bolt head, clearing the locking recesses of the barrel extension, and both parts now continue rearward together, opening the breech and actuating the extraction and feeding cycles. The chamber is opened under high pressure, thus the chamber received a series of flutes in order to increase extraction reliability and prevent sticking of the spent casing to the chamber walls. en.wikipedia.org/wiki/Heckler_%26_Koch_HK33 This video was created using the program World of Guns: Gun Disassembly: store.steampowered.com/app/262410 Also, you can find this application on Google Play, App Store and Amazon.