Arken Rigid Precision Mount — 30mm, Cantilever

Arken’s Rigid Precision Mount is a one-piece cantilever scope mount, CNC machined from aircraft-grade 6061-T6 aluminium for a stiff, single-unit platform that holds zero under recoil. The cantilever design pushes the scope forward roughly 2.5in ahead of the rail, giving AR-platform rifles the extra eye relief they need without a separate ring-and-base setup to align. Available with 0 MOA or 20 MOA of built-in elevation, depending on how far out you’re shooting.

Key features

• One-piece cantilever design: Rings and base machined as a single unit — no alignment to fuss with between separate rings and a base.
• Aircraft-grade 6061-T6 aluminium: Fully CNC machined for a stiff, precise fit that holds zero under heavy recoil.
• ~2.5in forward extension: Pushes the scope forward for correct eye relief on AR-platform rifles.
• MIL-STD Picatinny fit: Fits standard Picatinny rails.
• Matte black anodised finish: Durable and corrosion-resistant.

Choose your MOA offset

Both options below are the 30mm tube diameter. Pick whichever suits your typical shooting distance:

• 0 MOA — no built-in elevation, for general-purpose and closer-range use where you don’t need extra elevation dialled in before you start.
• 20 MOA — 20 MOA of built-in elevation, freeing up more of your scope’s internal adjustment range for longer-range shooting.

Full specifications

Tube diameter	30mm
MOA options	0 MOA, 20 MOA
Material	Aircraft-grade 6061-T6 aluminium, CNC machined
Finish	Matte black anodised
Rail compatibility	MIL-STD Picatinny rails, AR-platform rifles
Height (base to tube centre)	1.5 in
Forward extension	~2.5 in
Ring screw torque	Maximum 18 in/lb (follow your optic manufacturer’s spec if it’s lower)
Base screw torque	Maximum 30 in/lb
Weight — 0 MOA	5.9 oz
Weight — 20 MOA	6.9 oz
In the box	Rigid Precision Mount, mounting hardware, Allen wrench

Who it’s for

The Rigid Precision Mount suits AR-platform shooters who want a single-piece mount rather than separate rings and a base to align — one less source of movement or misalignment under recoil. 0 MOA covers general-purpose and closer-range use; 20 MOA is worth choosing if you’re shooting far enough out that you’d otherwise run out of elevation adjustment in the scope itself.

Warranty

Backed by Arken’s lifetime warranty: Australian purchases are covered under the same global policy — if it fails to perform as advertised, it will be repaired or replaced.