Vector Optics Tactical 30 mm Low Weaver/Picatinny Rings (V-34 / SCTM-27) — Slim low-profile pair with 21.5 mm center height for 30 mm scopes

The Vector Optics Tactical 30 mm Low Rings deliver a compact, rigid, and repeatable mount for 30 mm scope tubes on 21 mm Weaver and MIL-STD-1913 Picatinny rails. Cut from 6061-T6 aluminum alloy and finished in a durable matte black, these low-profile rings keep your optic close to the bore for improved cheek weld and a more natural sight line on flat-top receivers and hunting rifles. A precise 21.5 mm (0.8″) rail-to-center height accommodates many 24–32 mm objectives (and some 40 mm with slim barrels and flat rails), while the 16 mm (0.63″) ring width and broad clamp footprint help distribute recoil forces evenly across the tube.

Intended for real-fire calibers, the V-34 / SCTM-27 pair resists shift under recoil when installed to spec. If you are building a lightweight stalking rifle, a rimfire trainer, or a compact field carbine with a low-mounted optic, these rings provide the sturdy, no-nonsense interface you need—without excess mass or height.

Key Parameters

• Tube diameter: 30 mm
• Center height (rail top → tube center): 21.5 mm / 0.8″ (low profile)
• Ring width: 16 mm / 0.63″
• Net weight (pair): ~105 g / 3.7 oz
• Material: 6061-T6 aluminum alloy
• Finish: Matte black (hard-anodized)
• Rail interface: 21 mm Weaver & Picatinny compatible
• Intended use: Shock-resistant, designed for real-fire calibers
• Model references: V-34 / SCTM-27 (Low)

Real-World Use Cases

Low-slung hunting setups

Keep the scope close to the bore to improve cheek weld and natural point of aim on lightweight hunting rifles. The low 21.5 mm center height helps minimize parallax error at typical field distances and promotes fast, repeatable mounting behind the optic in awkward shooting positions.

Rimfire & trainer rifles

On .22 LR and other training platforms, low rings preserve familiar eye height and balance, making transitions to your centerfire rifle seamless. The slim 16 mm band gives secure clamping without unnecessary bulk.

Compact field carbines

For AR-pattern uppers using small-objective scopes (or raised rails), the low profile helps maintain a tidy silhouette and keeps weight closer to the bore axis for better handling during dynamic movement.

Mechanical Properties & Mounting Highlights

• Rigid alloy construction: 6061-T6 bodies and clamps resist flex and maintain optical alignment when torqued correctly.
• Secure rail bite: Weaver/Picatinny cross-bolt geometry provides solid recoil lug engagement on in-spec rails.
• Even tube support: Broad contact patch and precision machining help prevent scope tube marring and creeping.
• Field-ready finish: Low-glare matte black coating reduces reflections and blends with most receivers and optics.

In the Box

• 2 × 30 mm low-profile rings (V-34 / SCTM-27)
• 1 × Hex key (for cap screws)
• Basic mounting guide

Fit & Setup Notes

• Objective clearance: At 21.5 mm center height, most 24–32 mm objectives clear flat rails; 40 mm objectives may require a flat rail and slim barrel contour—always verify on your rifle.
• Rail standard: Fits 21 mm Weaver and Picatinny. Choose a consistent slot and index mark to aid re-installation.
• Torque & sequence: Tighten cap screws evenly in an X-pattern to the scope manufacturer’s torque spec; re-check after first live-fire.
• Leveling: Level the rifle and scope reticle before final torque to avoid unintended cant.

Technical Specifications

Summary

Vector Optics 30 mm Low Rings (V-34 / SCTM-27) are a tough, lightweight, and precise solution for low-mount 30 mm optics. With true 21.5 mm center height, Weaver/Picatinny compatibility, and a hard-anodized aluminum build, they deliver repeatable alignment and dependable hold—ideal for hunters, trainers, and field carbine builds that benefit from a lower sight line and rock-solid stability.