Vector Optics X-ACCU 30mm Adjustable Elevation Dovetail Rings (V-46 / XASR-3045) — Fine-Tune Height & Cant for 11 mm Dovetail Rails
The Vector Optics X-ACCU 30 mm Adjustable Elevation Dovetail Rings give precision shooters a simple, rugged way to fine-tune scope height and introduce a controlled amount of elevation (cant) without changing bases. Built for 11 mm dovetail rails found on many .22 LR rimfires and spring-piston/PCP air rifles, these rings provide a stepless center-height range of 35–41 mm (1.4–1.6″) from base to optical center, allowing perfect cheek weld, reliable flip-cap clearance, and extra internal elevation preserved inside your scope. Each ring uses six Torx cap screws for even clamping around a 30 mm tube, and the CNC-machined 6061-T6 aluminum body with a hard black matte anodized finish keeps weight low and durability high—ready for field, range, or competition.
Key Features & Advantages
- Adjustable center height (35–41 mm): Dial in the exact line of sight for your face geometry, stock comb, and eye relief needs.
- Practical elevation “cant” without a new base: By setting the rear ring slightly higher than the front, you recover “up” travel for longer-range zeros while keeping the scope near mechanical center.
- 30 mm tube compatibility: Ideal for modern rimfire/airgun optics; fits scopes with 56 mm objectives while maintaining clearance (with typical caps and sunshades).
- Rigid, repeatable interface: Precision CNC-machined rings with six Torx cap screws per ring distribute pressure evenly to minimize marring and slippage.
- 11 mm dovetail mount: Secure clamping on standard 11 mm (3/8″) rails used by .22 LR and air rifles; simple to install and level.
- Light but durable: 6061-T6 aluminum balances stiffness with low mass; black matte anodizing resists glare and corrosion.
Real-World Applications
.22 LR Benchrest, NRL22 & Silhouette
When a flat dovetail setup runs out of turret travel at distance, micro-raise the rear ring to add measured cant and free additional elevation. Keeping the erector near center improves tracking and hold precision for targets from 50 m to 200 m+.
PCP & Spring-Piston Airguns
Different barrel/shroud diameters and tall objectives make height selection critical. Use the stepless 35–41 mm window to clear 44–56 mm objectives with flip caps while maintaining a comfortable head-up position—especially helpful with bulky ear pro.
Hunting & Pest Control
Dial the height to your stock comb and optic, then lock it in. Even clamping from six cap screws per ring holds zero through carry, recoil cycles, and temperature swings common to pest and small-game work.
Mechanical Design & Durability
- Body: CNC-machined 6061-T6 aluminum for stiffness, alignment, and repeatability.
- Finish: Black matte anodized for low glare and corrosion resistance.
- Rail interface: 11 mm dovetail clamp for secure, repeatable mounting on common rimfire/airgun receivers.
- Fasteners: Six Torx cap screws per ring provide uniform tube pressure for secure retention.
- Weight: Approximately 140 g / 4.9 oz (pair) keeps handling lively without compromising rigidity.
What’s in the Box
- Pair of Vector Optics X-ACCU 30 mm Adjustable Elevation Dovetail Rings (V-46 / XASR-3045)
- T15 Torx wrench for ring caps and adjustments
- Retail packaging and quick-start guide
Technical Specifications
| Characteristic |
Specification |
| Tube Compatibility |
30 mm (1.18″) |
Center Height Range
(bottom of ring to optical center) |
35–41 mm (1.4–1.6″), stepless adjustment |
| Objective Compatibility |
Accommodates 56 mm objective scopes (with typical caps) |
| Ring Width |
26 mm (1.0″) |
| Mount Standard |
11 mm dovetail (rimfire/airgun) |
| Material |
6061-T6 aluminum alloy |
| Finish |
Black matte anodized |
| Fasteners per Ring |
6 × Torx cap screws |
| Weight (pair) |
140 g / 4.9 oz (approx.) |
| Included Tool |
T15 Torx wrench |
Setup & Best Practices
- Plan height first: Start with both rings set to the same reference; verify clearance (objective, caps, barrel/shroud, and handguard).
- Level and snug: Degrease rail and screws. Lightly clamp rings to the dovetail, level rifle and scope, then snug hardware before final torque.
- Introduce cant conservatively: To gain elevation, raise the rear ring a small amount relative to the front. For large cant values, use a dedicated sloped base or rail.
- Torque guidance: Keep ring cap screws ≤ 18 in-lb (≈ 2.0 N·m). Tighten in an alternating “X” pattern and maintain even left/right gaps. Avoid overtightening base clamps.
- Witness marks: Paint-pen fastener heads to monitor any movement during training or field use.
Summary
Vector Optics X-ACCU 30 mm Adjustable Elevation Dovetail Rings deliver precise, stepless height control and practical cant on standard 11 mm rails—without adding a heavy base. With even six-screw clamping, CNC 6061-T6 construction, and clearance for 56 mm objectives, they’re a smart, durable solution for rimfire and airgun shooters who demand a perfectly tuned optic setup for accuracy, comfort, and repeatable zero.
