Lower Parts & Spring Kits

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 and energy absorber by allowing the springs to flex separately from each other. This flex helps displace excess energy which decreases the chance of spring failure and assists with making your AR-15 more reliable.Compared to the stock spring,...

To change the Geissele Automatics H1 Buffer assembly to the heavier H2 or H3 buffer setup, you will need to disassemble and re-assemble the buffer replacing the steel weights with the correct number of tungsten weights. 1 Tungsten weight to add over all weight to your buffer setup. (H1 / H2 / H3 setups) Note : We are a factory direct LE/Mil dealer. Special Order turn-around time is dependent on the manufacturers inventory and production schedule. While most orders are filled within 3-5 weeks,...