Information

If you need a solid one-piece mount that pushes your scope forward for proper eye relief while giving extra elevation for longer-range shooting, this Arken Optics Precision 20 MOA Picatinny Cantilever Mount with a 2.5-inch offset is built for exactly that. 

The 2.5-inch forward offset helps with scope positioning on flat top style or other Picatinny-railed rifles, while the integrated 20 MOA cant preserves more of your scope’s internal elevation adjustment. CNC-machined aluminium keeps weight sensible without feeling flimsy

This is not a standard scope ring set—it’s a forward-offset cantilever mount. That means if your scope sits too far back for comfortable eye relief, this solves that problem without needing awkward rail extensions.

The 20 MOA cant angles the scope slightly downward relative to the rifle, which gives you more upward turret adjustment for longer-distance shooting. Great if you're stretching a centre-fire rifle or precision setup.

Important fitment note: this mount is for 30mm scope tubes only and Picatinny rails only. It is not suitable for 1-inch scopes, 34mm scopes, or 11mm air rifle dovetail rails unless using a suitable adapter.

The 1.5-inch height suits flat top straight-line stock setups well, but may sit higher than some traditional bolt-action users want.

Arken Optics maintains tight manufacturing tolerances for enhanced stability and performance. For best results, it is recommended that ring screws be torqued no higher than 18 in/lbs, and base screws no higher than 30 in/lbs, unless the optic manufacturer advises otherwise. The Rigid Precision design ensures a secure, rock-solid fit, perfect for demanding precision shooting applications.

Height = 38.1mm

• Cantilever design provides extended forward mounting position for improved eye relief

• Optimised for flat top style platforms, ensuring proper scope placement and balance

• Precision CNC machining delivers consistent fit and finish with tight tolerances

• Robust one-piece construction enhances stability and durability under recoil

• Integrated 20 MOA cant allows for increased elevation adjustment, ideal for long-range shooting

• Matte black anodised finish offers a sleek appearance and added corrosion resistance

• Engineered for rigidity, minimising flex and maintaining zero during use

• Low-profile design ensures compatibility with a variety of scope sizes and rail systems

• Easy installation and torque guidance, with recommended settings to protect your optic and mount

• Model: ARP-30 (20 MOA)
• Tube Size: 30mm
• Height: 1.5 inch
• Weight: 6.9 oz

• Arken Optics Rigid Precision 20 MOA Cantilever Mount - 2.5 inch offset.

FAQs

What scope size fits this mount?
This mount fits 30mm scope tubes only. This refers to the main tube diameter of your scope, not the front objective lens size. It will not fit 1-inch or 34mm scopes.

Will this mount fit a Picatinny rail?
Yes. This mount is designed for standard Picatinny rails and may also fit some Weaver rails, depending on slot dimensions.

Is this mount suitable for flat top rifles?
Yes. The 2.5-inch forward cantilever offset helps position the scope further forward for improved eye relief on flat top rifle setups with Picatinny rails.

Is this scope mount suitable for long-range shooting?
Yes. The built-in 20 MOA cant helps preserve more of your scope’s internal elevation adjustment, making it useful for medium- to long-range setups.

What does a 20 MOA scope mount do?
A 20 MOA mount angles the scope slightly to give additional elevation adjustment, helping when shooting at longer distances.

Can this mount be used on an air rifle?
Only if your air rifle has a Picatinny rail. It will not attach directly to standard 11mm dovetail rails without an adapter.

Is this mount too high for a traditional bolt-action rifle?
It may be, depending on stock design and scope size. At approximately 1.5 inches high, this mount is generally better suited to flat top configurations than low-mounted traditional hunting rifle setups.

Will this fit a 50mm objective scope?
Usually yes, but final clearance depends on your rifle setup, barrel profile, rail height, and scope dimensions.

Is this a one-piece or two-piece scope mount?
This is a one-piece cantilever mount, designed for improved alignment consistency and straightforward installation.

Does a one-piece mount help maintain zero?
A rigid one-piece mount can improve consistency and alignment, especially on Picatinny rail systems.