South African Army .22 Rimfire Conversion for the R4
This guide details the installation of the South African Defense Force (SADF) .22LR conversion kit for the R4 rifle, developed by Thor Engineering. The kit allows for low-cost training by converting the rifle to fire .22LR ammunition using an open-bolt blowback system. Expert Ian McCollum explains the process, highlighting the unique sear interaction and the use of a modified Mauser magazine. The guide emphasizes careful assembly for proper function.






