Aim-O Extended Mount Base 25.4mm / 30mm — Black

Anodised aluminium extended Picatinny mount for scopes and optics with a 25.4 mm or 30 mm tube. The included adapter insert lets a single mount cover both diameters, removing the need to buy separate rings for different setups.

The extended body moves the optic further forward than a standard mount, which helps when you need more eye relief or want to keep the rear section of the rail free for other accessories. One trade-off to keep in mind: the longer lever arm amplifies the vibration transferred by recoil, so it is important to torque the clamping screws correctly and to verify your zero after the first few range sessions.

The mount is built entirely from black anodised aluminium. At 230 g it adds little to the overall balance of the rifle, and the anodised finish protects the metal from oxidation while cutting down glare in direct light.

Key features

• Fits 25.4 mm and 30 mm scope tubes thanks to the included adapter insert: one mount for the two most common diameters.
• Extended profile that shifts the optic forward, letting you dial in eye relief to suit your preferred shooting position.
• Black anodised aluminium construction at 230 g: corrosion-resistant and light enough not to upset the rifle's balance.
• Clamps directly to a standard Picatinny rail — no additional adapters required.
• High-profile design keeps the sight line clear and makes it straightforward to mount an optic on rifles with tall factory iron sights.

In the box

• Pair of aluminium mounting rings with adapter insert