The Geissele Super 42 Braided Wire Buffer Spring & Buffer for AR-15 Carbine is a purpose-built upgrade for shooters who demand reliable, smooth cycling in their modern sporting rifles. Unlike traditional coil springs, Geissele's three-strand braided wire design works as both a harmonic damper and energy absorber, allowing each wire to flex independently and dissipate the shock and vibration that can wear out standard buffer systems over time. If you've felt that metallic twang through your buttstock or worried about spring fatigue after heavy shooting sessions, this combo addresses both issues with a design that's proven to hold its tension and return force longer than conventional springs.

Built tougher where it counts, the Super 42 delivers 15% stronger average return force than stock buffer springs, which matters when you're running a dirty gun or feeding it steel-case ammunition—both scenarios where weak spring return can cause feeding problems. The included H2 buffer is matched to work seamlessly with the spring, giving you a tuned system rather than a guessing game. This is the kind of upgrade that experienced AR shooters reach for when they want their gun to run softer, last longer, and feel tighter in hand.

Important compatibility note: the Super 42 is designed for carbine-length buffer tubes only and is not compatible with rifle-length or A5 receiver extensions. If you're building or upgrading a carbine-pattern AR-15, this buffer spring combo solves real reliability and durability problems that shooters face downrange.

Key Features

• Three independent braided wire strands dampen recoil shock and reduce spring fatigue
• 15% stronger average return force for reliable feeding with dirty guns and steel-case ammo
• Reduced tendency to lose tension and performance over high round counts
• Eliminates spring twang and vibration felt through the buttstock
• Includes matched H2 buffer assembly for a complete, tuned system
• Designed for carbine-length buffer tubes on AR-15 pattern rifles

Specifications

Manufacturer	Geissele Automatics
Product Type	Buffer Spring & Buffer Assembly Combo
Spring Design	Three-strand braided wire
Buffer Included	H2
Compatibility	Carbine-length buffer tubes only; not compatible with rifle-length or A5 extensions
Performance vs. Standard Spring	15% stronger average return force

Frequently Asked Questions

Will the Geissele Super 42 work with my AR-15?

The Super 42 is designed specifically for AR-15 carbine-length buffer tubes. It is not compatible with rifle-length or A5 receiver extensions, so verify your gun's buffer tube length before ordering.

What is the H2 buffer, and why does it come with the spring?

The H2 buffer is included as a matched assembly that works in concert with the Super 42 spring to create a tuned system. Geissele pairs them to optimize reliability and performance together.

Will this spring reduce recoil or felt impulse?

The Super 42's braided wire design dampens recoil shock and eliminates spring vibration and twang, which can improve the feel and reduce the wear on your rifle's receiver and components over time.

Does this upgrade help with feeding issues?

Yes. The 15% stronger average return force helps strip rounds reliably from the magazine, especially when running a dirty weapon or using steel-case ammunition where weaker springs may hesitate.