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VO 30mm One-Piece Cosine ACD CANTILEVER RIS Mount – Black
Vector Optics Cosine ACD CANTILEVER is a one-piece 30 mm RIS scope mount with an integrated Angle Cosine Indicator (ACD) and bubble level for improved long-range shooting accuracy. Its cantilever design provides a 38 mm optical center height, while the CNC-machined 6061-T6 aluminum body ensures excellent rigidity and durability. The integrated ACD for more precise elevation corrections.
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Vector Optics 30 mm One-Piece Cosine ACD CANTILEVER RIS Mount
The Vector Optics Cosine ACD CANTILEVER is a precision one-piece mount designed for rifle scopes with a 30 mm tube. It combines a forward-offset cantilever design with practical features for improved long-range accuracy. The integrated Angle Cosine Indicator (ACD) helps determine the rifle's angle when shooting steeply uphill or downhill, while the built-in bubble level helps eliminate rifle cant that could negatively affect shot placement. The mount provides a 38 mm (1.5") optical center height measured from the base to the center of the rings, while the forward-offset design makes it easier to achieve proper eye relief. The body is CNC-machined from 6061-T6 aluminum alloy, and each ring secures the scope with 4 screws. The mount attaches to a RIS / Picatinny rail using two cross bolts and a recoil lug for maximum stability. The result is a solid mounting platform that securely holds your scope while providing both cant control and shooting angle reference for more precise long-range shooting.
Key Features of the Vector Optics Cosine ACD CANTILEVER Mount
Technical Specifications
- Model: SCACD-24
- Tube Diameter: 30 mm (1.2")
- Mount Height: 40 mm (1.6")
- Optical Center Height: 38 mm (1.5") from the base to the ring center
- Length: 138 mm (5.4")
- Material: 6061-T6 aluminum
- Manufacturing: CNC machined
- Weight: 167 g
- Mount: RIS / Picatinny
- Rail Attachment: 2 cross bolts + recoil lug
- Ring Attachment: 4 screws per ring
- Angle Indicator: Yes, ACD (Angle Cosine Indicator)
- Bubble Level: Yes
- Recommended Ring Torque: 2.0–2.5 N·m (18–22 in/lbs)
- Recommended Base Torque: 3.4–4.0 N·m (30–35 in/lbs)
- Finish: Matte black
Package Contents
- Vector Optics 30 mm One-Piece Cosine ACD CANTILEVER RIS Mount
- T15 Torx key
Frequently Asked Questions (FAQ)
What is the ACD angle indicator used for?
The ACD (Angle Cosine Indicator) helps determine the rifle's shooting angle when firing steeply uphill or downhill, making it easier to apply the correct elevation adjustment.
Why does the mount include a bubble level?
The built-in bubble level helps ensure the rifle is not canted sideways, reducing aiming errors that become more noticeable at longer distances.
What are the advantages of a cantilever mount?
A cantilever mount positions the scope farther forward than the mounting point, making it easier to achieve proper eye relief while maximizing usable rail space.
| Color | Black |
| Weight (g) | 168 (g) |
| Body/receiver material | Metal |
| Mounting System | RIS / Picatinny |