• A rugged OCTO™ Ratcheting Arm with an 18″ heavy-duty seat rail mount and AMPS mounting pattern—offering the same durability you’d expect from a premium heavy-duty tablet mount.
  • A black, adjustable OCTO™ Ratcheting Arm with an 18″ heavy-duty seat rail mount and AMPS mounting pattern, featuring a comfortable foam grip and wrist strap at the top and a compact folding tripod base at the bottom. Shown fully extended against a white background—ideal for pairing with an adjustable vehicle device holder or as a stable support for your tablet mount on the go.
  • OCTO™ Ratcheting Arm with 18″ Heavy-Duty Seat Rail Mount and AMPS mounting pattern, shown in black with adjustable positions indicated in gray—offers versatile positioning similar to an adjustable vehicle device holder or a robust tablet mount, and attaches securely to a rail using a clamp and flexible extension.
  • The OCTO™ Ratcheting Arm with 18″ Heavy-Duty Seat Rail Mount and AMPS mounting pattern features a black adjustable metal arm with knobs, an extension pole, and a base mount; curved arrows indicate its multi-joint movement and rotation capabilities, making it ideal for use as a heavy-duty tablet mount or adjustable vehicle device holder.
  • The OCTO™ Ratcheting Arm with 18″ Heavy-Duty Seat Rail Mount and AMPS Mounting Pattern is a black articulating arm featuring adjustable knobs and a mounting plate, designed to securely support cameras, accessories, or tablets in photography and videography setups, while also providing reliable heavy-duty mounting for versatile device positioning.
  • The 18 Gooseneck Seat Rail Mount—compatible with 25mm ball accessories—features a black metal spring, mounting plates, a silver bracket, and four black screws, all displayed on a white background.
  • Introducing the Cup Holder Mount with Metal AMPS Mounting Pattern - 25mm: a sturdy black mounting plate featuring a ball joint and four screw holes, accompanied by four large screws. Universal AMPS fit ensures compatibility with a wide range of device holders for flexible and versatile setups. Designed for easy installation and long-lasting durability, this mount offers both convenience and reliability. An illustration details the precise hole diameters and spacing for proper fitment.
  • A person holds the Clamp Mounting Pedestal with 12 Gooseneck - Dual-T Compatible, featuring black ribbed grips for a secure hold. The text notes its stability and adjustability for device mounting. Arkon Mounts logo is in the corner.

OCTO™ Ratcheting Arm with 18" Heavy-Duty Seat Rail Mount with AMPS Mounting Pattern

OCTO™ Ratcheting Arm with 18" Heavy-Duty Seat Rail Mount with AMPS Mounting Pattern

✅ Made In USA

✅ Quick Delivery

✅ Cruelty Free

 (88 Reviews)
$52.90
$52.90 $78.95
SAVE 32% Sold out
 
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A rugged OCTO™ Ratcheting Arm with an 18″ heavy-duty seat rail mount and AMPS mounting pattern—offering the same durability you’d expect from a premium heavy-duty tablet mount.

OCTO™ Ratcheting Arm with 18" Heavy-Duty Seat Rail Mount with AMPS Mounting Pattern

$52.90
$52.90 $78.95
SAVE 32% Sold out

The OCTO™ Ratcheting Arm with 18" Heavy-Duty Seat Rail Mount provides a strong, fully adjustable solution for securely positioning your phone or tablet in cars, trucks, and fleet vehicles. The 18-inch aluminum gooseneck bends easily into place while maintaining a firm hold, and the mount installs directly to your vehicle’s seat rail using the passenger seat bolt—no drilling required. A drill-base option is also included for permanent mounting setups.

At the top of the gooseneck, the OCTO™ Ratcheting Arm delivers smooth, controlled adjustability with 360-degree rotation and multiple pivot points, making it easy to set the perfect viewing angle for navigation, ELD apps, or in-cab workflows. Built from reinforced materials for daily use on the road, this mount is compatible with all 4-hole AMPS holders, cradles, and adapters.

Features

  • Heavy-duty 18-inch aluminum gooseneck for flexible positioning
  • OCTO™ Ratcheting Arm with 360° rotation and multi-point adjustability
  • Solid aluminum seat rail design for long-term durability
  • Smooth 180° left/right adjustment for optimized device placement
  • Quick installation using only a socket wrench—no drilling required

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