WARNE V427/429M Browning X-Bolt Matte Base Set

The WARNE V427/429M Browning X-Bolt Matte Base Set is a two-piece rifle scope base engineered to add Weaver-style cross-slot rails to Browning X-Bolt and X-Bolt 2 rifles (excluding Super Short Action models). Constructed from lightweight yet sturdy aluminum and finished in matte black, this base set offers an affordable, easy-to-install solution for mounting optics where a factory rail isn’t present. It’s part of Warne’s Vapor® series of mounts, known for practical field performance and quality manufacturing in the USA.

Key Features

Two-Piece Weaver-Style Base:
• Adds a Weaver-compatible mounting surface on Browning X-Bolt rifles so you can attach a wide range of scope rings and accessories.

Lightweight Aluminum Construction:
• Machined from solid aluminum for strength without significantly increasing rifle weight, preserving balance for field carry and hunting.

Matte Black Finish:
• Non-reflective matte surface reduces glare and visually complements many rifle finishes while minimizing distractions in bright light.

Firearm-Specific Fit:
• Designed to match the Browning X-Bolt and X-Bolt 2 receiver profile (all variants except Super Short Action), ensuring secure seating on the receiver.

Made in the USA:
• Engineered and manufactured in the United States under Warne’s quality standards, with a lifetime warranty backing.

Includes Mounting Hardware:
• Ships with the required 6-48 Torx screws for installation, saving you the hassle of sourcing fasteners separately.

Technical Specifications

Performance & Practical Use

The V427/429M base set provides a practical way to mount optics on Browning X-Bolt rifles that lack a built-in Weaver or Picatinny rail. Its lightweight aluminum build offers a balance of strength and minimal added mass, so your rifle stays manageable for hunting or range work. By creating a standard Weaver-style platform, it broadens your choice of scope rings and optic accessories, simplifying upgrades and allowing more flexibility in sighting setups.

Installation is straightforward: position each base piece into the rifle’s receiver, use the supplied Torx screws to secure them, and follow proper torque recommendations. Ensuring smooth, clean contact surfaces and verifying fit before final tightening helps maintain proper alignment and performance once rings and scope are installed.

Best Suited For

✔ Browning X-Bolt or X-Bolt 2 owners wanting a Weaver-style rail interface
✔ Hunters adding a scope to rifles without existing rails
✔ Shooters seeking an affordable, lightweight mounting solution
✔ Field or range use where a low-glare matte finish is preferred

User Tips

Check Fitment:
Make sure your Browning X-Bolt variant isn’t a Super Short Action model, as this base set isn’t compatible with those.

Proper Torque:
Use correct torque values on the receiver screws (often recommended around 18–25 in-lbs depending on firearm manufacturer guidance) to ensure secure fitment without damaging threads or the receiver.

Prepare Contact Surfaces:
Before installing, remove oil or grease from the receiver and screws so the base seats fully and won’t shift under recoil.

Ring Selection:
Pair this base set with Weaver-style rings appropriate for your scope’s tube diameter and objective lens size to achieve the desired eye relief and secure mounting.