Designed to fit a Nosler M21 and ideal for standard to magnum calibers, the Leupold 183481 QRW Cross-Slot Base Set Matte Black Nosler M21 combines the proven durability of Leupold optics mounting with quick-release convenience. Built with solid steel construction that has been extreme recoil tested, this two-piece base delivers dependable performance in the field and at the range.
The Quick Release Weaver Style mount uses an adjustable double-lever mechanism to lock the rings securely into the base—simply rotate the levers to achieve a lock. Universal cross-slot compatibility allows it to fit Weaver and Picatinny rails, giving you flexibility when choosing compatible rings. The base features CNC machining for perfect alignment and includes locking screws with nylok to prevent backing out or recoil.
These Leupold Cross-Slot two-piece bases are every bit as rugged and dependable as the rifle scopes they’re intended to secure, and work with any of Leupold’s PRW2, QRW2, LRW, Open Range, and BackCountry rings. Designed, machined, and assembled in the USA, this mount represents Leupold’s commitment to quality engineering and American manufacturing.
