Radian Raptor-LT Charging Handle (SIG MPX)

The Radian Raptor-LT for the SIG MPX (P/N R0367) is the dedicated MPX variant of Radian's flagship ambidextrous charging handle. The MPX factory handle is functional but small, with thin tabs that effectively require both hands to rack the bolt cleanly. The Raptor-LT replaces it with a full ambidextrous unit machined from 7075-T6 aircraft-grade aluminum and over-molded with a fiberglass-reinforced polymer that adds texture without weight. Total weight comes in at 1.4 oz, and the dimensions are MPX-specific, so it drops directly into the upper without modification.

The ambidextrous design lets the shooter rack the bolt with a thumb, finger, or palm strike from either side, which matters more on the MPX than on an AR because the optic-mounted Picatinny top rail leaves limited grip space behind the rear sight when running an enclosed dot or magnifier. Forum consensus across SigTalk and r/MPX places the Raptor-LT as the single most-recommended first upgrade on the platform, ahead of triggers, optics, and lights.

Finish is MILSPEC Type III hard-anodize over the aluminum core, with the polymer over-mold providing the visible texture. Available in Black, Flat Dark Earth, and Gray. The Raptor-LT is functionally identical to the AR-pattern Raptor-LT, but the MPX version is NOT cross-compatible because the MPX upper uses a different charging-handle channel geometry. Buy the MPX-specific SKU.