Egw Winchester Xpr La 1-Piece Picatinny Base 20 Moa

The EGW Winchester XPR LA 1-piece Picatinny base with 20 MOA elevation is built for shooters who plan to stretch their shots past 500 yards. If you're running a Winchester XPR in .300 Win Mag or another long-action cartridge and want a solid, no-nonsense mounting solution for long-range hunting or tactical work, this one-piece base delivers the angle and rigidity you need without the complexity of stacked shims.

EGW machines these bases in-house and finishes them with tumble, sand blast, and Type II anodizing—the kind of process that builds durability into the metal rather than just coating it. The beveled edges on both sides are ambidextrous, so it doesn't matter how you mount it. The Picatinny cross slots run the full length of the rail, giving you freedom to position your rings exactly where they need to be. The center channel design keeps weight down and, in most setups, won't block your factory iron sights if you want to keep them as a backup.

Setup is straightforward: torque the base to 20 inch-lbs with a drop of blue threadlocker (sold separately), then zero at 200 yards. The 20 MOA angle is purpose-built for the 500–1000 yard range; if you're hunting closer distances, EGW also makes a 0 MOA version. Every component—base, hardware, wrench, and packaging—is USA-made.

Key Features

• One-piece Picatinny rail base eliminates shifting and provides rock-solid accuracy
• 20 MOA elevation angle optimized for long-range hunting and shooting beyond 500 yards
• Ambidextrous beveled design fits any rifle orientation
• Full-length cross slots accommodate various ring and accessory positions
• Center channel reduces weight while preserving clearance for iron sights
• Type II anodized finish for corrosion resistance and durability
• Domestically manufactured in EGW's machining facility

Specifications

Frequently Asked Questions

Is this 20 MOA base right for my Winchester XPR?

This base is designed for the Winchester XPR in Long Action. EGW recommends verifying that your receiver's hole spacing matches their published dimensions before ordering. If you're unsure, measure the distance between your action's mounting holes and compare to EGW's specs.

What's the best zero distance for the 20 MOA angle?

EGW recommends zeroing at 200 yards when using the 20 MOA base. This angle is optimized for shooting between 500 and 1000 yards; if you're hunting or shooting in closer ranges, their 0 MOA version may be more appropriate.

Will this base block my factory iron sights?

In most cases, no. The center channel design of this base reduces material where possible, which often allows factory iron sights to coexist underneath your scope rings. However, fit depends on your specific rifle and ring height, so verify clearance before mounting.

What do I need for installation, and is threadlocker included?

You'll need a wrench (included) and blue threadlocker (sold separately). Install with 20 inch-lbs of torque and a small amount of threadlocker on the base screws. All mounting hardware is included.