Quick view Geissele Automatics Geissele Automatics Super 42, Geissele 05-495 Supr 42 Buffer/spring $72.00 The geissele super 42 spring was designed to improve the function and reliability of your ar-15 pattern rifle.Its unique spring design uses three independent strands of wire, just like the german mg42 machine gun.This concept acts as a harmonic damper... Compare Add to Cart