Geissele Super 42 Spring Combo H2
$114.00
The Geissele Super 42 H2 combo pairs a three-strand braided buffer spring with a matched H2 buffer for carbine-length AR-15s. Because the spring flexes independently across all three strands, it holds its force longer and cuts the “twang” felt through the stock. Built for shooters who want consistent cycling, even when running dirty or suppressed.
Out of stock
Description
Geissele Super 42 Spring Combo H2
The Geissele Super 42 H2 buffer spring combo exists for one reason: closing the reliability gaps a stock AR-15 buffer system leaves behind. Because Geissele built the Super 42 spring from three independent, braided strands of wire — the same concept behind the German MG42 machine gun’s recoil spring — each strand flexes separately from the others, acting as a harmonic damper that absorbs excess energy instead of transmitting it straight into your buttstock. As a result, the spring resists losing length and force over a high round count, which means it keeps working the way it did on day one long after a standard spring has gone soft. This particular kit pairs that spring with a matched H2 buffer, so there’s no guesswork on weight selection.
Beyond the harmonic damping, the Super 42 delivers roughly 15% more average return force than a mil-spec buffer spring. That extra force matters most when things get dirty — a fouled action or steel-case ammo puts more strain on bolt carrier return speed, and this spring is built to compensate. Since the spring and buffer are engineered as a matched pair, they must be run together; the spring will not fit over a standard buffer, and doing so can damage the rifle or receiver extension.
Key Features — Geissele Super 42 H2
- Three-strand braided wire spring design, based on the MG42 machine gun recoil spring
- Includes a matched Geissele H2 buffer
- Approximately 15% stronger average return force than a standard buffer spring
- Reduced tendency to lose length and force over a given round count
- Reduces buffer spring “twang” felt and heard through the buttstock
- Sold as a matched spring/buffer set — not compatible with standard buffers
- Fits carbine-length buffer tubes only; not compatible with rifle-length or A5 receiver extensions
Why This Product Stands Out
Most shooters never think about their buffer spring until it starts announcing itself — that hollow “twang” on every shot, or a bolt carrier that doesn’t quite strip a round out of the mag when things get gritty. The Super 42 addresses both, and it does it through spring geometry rather than added mass, which is why the felt difference shows up on the first range trip rather than after a break-in period.
Because the buffer and spring are matched at the factory, there’s no trial-and-error buffer-weight guessing that so many AR builders go through. Geissele already did that math for the carbine-length H2 platform, so what’s in the box is what the gun needs. That matters just as much for a duty or competition carbine that has to run clean every time as it does for a home-built rifle getting its first real upgrade.
Ideal Use Cases
- General reliability upgrade for any carbine-length AR-15
- Rifles that regularly run suppressed
- Competition and duty carbines where consistent cycling matters
- Builders replacing a stock spring showing wear or “twang”
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Geissele Automatics |
| Model | Super 42 |
| Manufacturer Part # | 05-495-H2 |
| UPC | 817953026915 |
| Type | Buffer Spring & Buffer Combo |
| Buffer Weight | H2 |
| Spring Construction | Braided wire, 3-strand |
| Fit | AR-15, carbine-length buffer tubes only |
| Color | Silver |
Manufacturer: Geissele Automatics | Model: Super 42 | Type: Buffer Spring & Buffer Combo | UPC: 817953026915 | SKU: 05-495-H2