HB Industries Stribog Folding Charging Handle

The HB Industries Stribog Folding Charging Handle solves the factory handle's biggest ergonomic problem: it sticks out the side of the receiver permanently. The HBI handle spring-loads outward when the shooter pulls it, then folds flush against the receiver when released. A detent in the stowed position keeps the lever locked down so it cannot snag on slings, gear, or the support hand during shooting.

The handle is built from chromoly steel for the lever shaft and 6061-T6 aluminum for the body, with black nitride on the steel and hard coat anodize on the aluminum. Installation is ambidextrous, the same handle bolts to either side of the receiver, so left-handed shooters get a stowable handle that does not interfere with the support-side grip.

Compatibility covers the SP9A1, SP9A2, and SP9A3 across 9mm, 10mm, and 45 ACP. The handle does NOT fit the short-receiver "S" variants (SP9A1S, SP9A3S) because the receiver geometry on those models is different. HBI also sells locking charging blocks (separate product) that pair with this handle to lock the bolt position during suppressed fire.