SKU: 99477
UPC: 604544630787
MPN: WV99477
The Weaver Base Extend Multi-slot for Winchester XPR SA in matte black is a precision rifle mounting solution engineered for shooters who demand modularity and extended rail real estate. Built for Winchester's popular XPR SA bolt-action platform, this extended picatinny base allows you to position accessories—optics, night vision units, or secondary sighting systems—further forward on the receiver without compromising sight radius or ballistic zero stability. If you shoot Winchester XPR SA rifles in field, competition, or tactical training environments, this base addresses the common constraint of limited factory rail space on short-action receivers.
Manufactured to exacting tolerances, the Weaver Base Extend Multi-slot features aircraft-grade construction and a black matte finish that resists glint and corrosion in field conditions. The multi-slot design is compatible with both Picatinny and Weaver-profile rings, giving you flexibility when integrating existing optics or mounting hardware. By extending forward rail length by one full inch, this base permits forward-mounted optics that reduce magnification-induced head positioning strain and enable quicker target acquisition—critical advantages in precision rifle shooting. The matte anodize finish preserves optical clarity by minimizing internal reflection and delivers a professional appearance that blends seamlessly into tactical or hunting builds.
Law enforcement and competitive marksmen benefit most from this extended mount when equipping Winchester XPR SA rifles for designated marksman or long-range precision roles. Installation is straightforward—the base replaces the factory Winchester mount using existing receiver screw holes with no gunsmithing required. Verify ring-to-bore clearance and torque fasteners to manufacturer specifications. Compatible with standard 1-inch and 30mm optic tube diameters when paired with appropriate Weaver or Picatinny rings, this base transforms the XPR SA into a modular platform capable of hosting high-magnification scopes, thermal imaging systems, or secondary red-dot optics for rapid target transitions.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.