Geissele Super 42 Braided Wire Buffer Spring and H1 Buffer AR-15

The Geissele Super 42 is a buffer spring and H1 buffer sold as a bundle for AR-15 pattern rifles. The spring uses three independent strands of braided wire, a design inspired by the German MG42 machine gun, which lets the strands flex separately to absorb and dissipate energy.

According to the product description, this design resists losing length and force over a given round count compared with a stock spring, and it reduces spring twang felt through the buttstock. The spring is rated at about 15% stronger average return force than a standard buffer spring, which the description says helps strip rounds from the magazine in dirty conditions or with steel-case ammunition.

The bundle is silver in color, made of steel, and fits AR-15 pattern rifles.

• Brand: Geissele Automatics
• Model: Super 42
• Type: Buffer spring and H1 buffer bundle
• Platform: AR-15 pattern rifles
• Spring design: Three independent braided wire strands
• Return force: About 15% stronger than standard buffer spring
• Material: Steel
• Color: Silver