Geissele Super 42 Rifle Length Spring
The Super 42 Rifle Length Spring brings Geissele’s Super 42 buffer spring design to AR-15/M16 rifles that use a rifle-length buffer tube. It is a drop-in replacement for the standard rifle action spring.
- Three independent strands of wire that can flex separately from each other, acting as a harmonic damper and energy absorber
- Displaces excess energy, reducing the chance of spring failure and helping overall reliability
- Reduces the ‘twang’ sound transmitted through the stock
- Works with a standard rifle-length buffer and rifle-length buffer tube
Fits rifle-length (A2-type) buffer tubes only. It is not compatible with carbine-length buffer tubes – for those, Geissele offers the Super 42 Braided Wire Buffer Spring and Buffer Combo in H1, H2 and H3 weights. The buffer is not included.
Specifications:
- Type: Rifle-length action (buffer) spring, 3-strand braided wire
- Platform: AR-15/M16 with rifle-length buffer tube
- Buffer: Standard (mil-spec) rifle-length buffer, not included
- Manufacturer part number: 04-308-F




































