Geissele Super 42® Braided Wire Buffer Spring & Buffer Combo

High-Performance Harmonic-Damped Spring for AR‑15 Carbines

The innovative Super 42® Spring features three independent wire strands—modeled after the German MG42 machine gun—and functions as a harmonic damper and energy absorber by allowing strand separation. This reduces spring ping, minimizes spring fatigue, and significantly enhances reliability.

Benefits

• 15% stronger return force versus standard buffer springs—improves extraction in dirty rifles or when using steel-case ammo
• Eliminates “spring twang” noise felt through the stock
• Much less prone to loss of length or force over time
• Must be used with Geissele buffer only—using it with a standard buffer can damage the rifle or receiver extension

Specifications

• For carbine-length buffer tubes only; not compatible with rifle-length or A5 extensions
• Not recommended for 300 Blackout subsonic ammunition
• Includes H1 weight buffer, tuned for this spring