In Stock Vector Optics 30mm One Piece Cosine Indicator Picatinny Cantilever ACD Mount
This Vector Optics 30mm one-piece cantilever mount is a solid, no-nonsense upgrade if you want your optic sitting rock-steady and properly aligned every time. The built-in cosine indicator helps you keep your rifle level for more consistent long-range shots, especially when angles start messing with your hold. It’s tough, lightweight, and designed to lock straight onto Picatinny rails without any fuss—just mount it and you’re good to go.
-Nathan (Technical Advisor)
Introducing the Vector Optics 30mm One Piece Cosine Indicator Picatinny Cantilever ACD Mount, a pinnacle of precision engineering for long-range shooting. With a bottom-to-ring center height of 38mm (1.5in), this mount is exceptionally accurate and fully CNC machined for durability. Featuring four screws per ring and a 21mm Picatinny mount with two crossing bolts and an anti-retreat bar, it ensures a secure and steadfast connection. The built-in angle indicator and scope level are invaluable tools, aiding shooters in achieving precision at extended distances. Elevate your shooting experience with the reliability and accuracy of the Vector Optics ACD Mount, designed to meet the demands of long-range marksmanship.
Height = 40mm
- Ring Diameter: 30mm
- Overall Length: 138mm / 5.4in
- Overall Height: 40mm / 1.6in
- Mount Length: 120mm / 4.7in
- Ring Width: 45mm / 1.8in
- Central Height: 38mm / 1.5in, bottom to centre
- Gap Length: 73mm / 2.9in
- Material: 6061-T6 aluminum alloy
- Weight: 167g / 5.89oz
- Mount: 1913 Picatinny
- Finish: Black matte
- Screws per ring: 4
- High-durability aluminium alloy in black matte
- Do not use over 18 inch / pounds of torque on the scope rings' screws
- Suggest 25 inch / pounds (Can Accept Max 45 Inch / Pounds) torque force for big nuts when installing the mount on the picatinny rail.
- Cantilever scope mount with anti cant device buble lever designed for hard and rigorous use.

- 38mm 1.5in Bottom to Ring Center, Extremely Accurate w/ Full CNC Machined.
- Four Screws per Ring, 21mm Picatinny Mount with Two Crossing Bolts & Anti-Retreat Bar.
- Angle Indicator and Scope Level Help You Shoot with Precision at Long Range.
- Vector Optics 30mm One Piece Cosine Indicator Picatinny Cantilever ACD Mount
- T15 torx wrench and retail package, the T15 torx wrench can be used to fasten the clamp nuts.
1. What is the cosine indicator for?
It helps you measure rifle cant angle so you can make more accurate long-range shots by compensating for slope.
2. What tube size optics does it fit?
It is designed for 30mm scope tubes.
3. Is it compatible with all Picatinny rails?
Yes, it is built specifically for standard Picatinny rail systems.
4. Is it a one-piece mount?
Yes, the design is a single solid piece for better stability and zero retention.
5. Will it hold zero under recoil?
It’s built from durable materials to maintain zero even with repeated recoil, assuming proper installation.
6. Is it suitable for long-range shooting?
Yes, especially because of the cant angle reference feature which helps with elevation corrections.
7. How heavy is it?
It’s relatively lightweight for a cantilever mount, designed not to unbalance your setup.
8. Does it require special tools to install?
No, standard hex tools are typically all you need.
9. Can it be used on airsoft or real firearms?
It is designed for real firearm recoil, so it is also more than capable for airsoft use.
10. What does cantilever design mean?
It means the scope is mounted forward, giving you better eye relief and more flexible positioning on your rifle.
Delivery costs & estimated arrival
Find your country below for the delivery charge and how long your order should take to reach you. All orders ship with FedEx. Estimates are in working days and exclude weekends and public holidays.
| Country | Up to 2kg | 2kg – 30kg | Estimated delivery | ||
|---|---|---|---|---|---|
| Order under €350 | Order €350 & over | Order under €350 | Order €350 & over | ||
| Austria | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Belgium | €8.95 | €14.95 | €14.95 | €14.95 | 4-6 working days |
| Bulgaria | €11.95 | €31.95 | €31.95 | €31.95 | 7-9 working days |
| Croatia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Cyprus | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Czechia | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Denmark | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Estonia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Finland | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| France | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Germany | €8.95 | €14.95 | €14.95 | €14.95 | 5-7 working days |
| Greece | €11.95 | €31.95 | €31.95 | €31.95 | 8-10 working days |
| Hungary | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Ireland | €6.95 | €6.95 | €8.95 | €8.95 | 2-4 working days |
| Italy | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Latvia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Lithuania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Luxembourg | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Malta | €14.95 | €89.95 | €89.95 | €89.95 | Contact us |
| Monaco | €10.95 | €21.95 | €21.95 | €21.95 | 4-6 working days |
| Poland | €10.95 | €21.95 | €21.95 | €21.95 | 5-7 working days |
| Romania | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Slovakia | €11.95 | €31.95 | €31.95 | €31.95 | 5-7 working days |
| Slovenia | €11.95 | €31.95 | €31.95 | €31.95 | 6-8 working days |
| Spain | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
| Sweden | €11.95 | €26.95 | €26.95 | €26.95 | 5-7 working days |
Returns & withdrawal
Which option you use depends on why you are sending the item back.
Changed your mind?
You have 14 days from receiving your order to withdraw from your purchase. Use our Withdrawal from Contract form to tell us. It is the quickest way, and we will then email you a free returns label.
If you would rather post the item back yourself to our returns address in Ireland, you pay the postage. Full details are on our Returns page.
Withdrawal from ContractFaulty, damaged or wrong item?
If your item arrived faulty, damaged or not what you ordered, please follow the steps on our Returns page. We cover the cost of returning these items.
Full details of all our return options are on that page.
Returns pageDelivery prices are shown in euros and confirmed at checkout.

calcPageSize()); bodyToggle()"
/>