The Axler 5.5" Mega Ball Clamp Arm with 1/4"-20 and 3/8"-16 ARRI Accessory Mount features two articulating joints, one with a 1/4"-20 threaded stud and the other with a 3/8"-16 threaded stud that converts to an ARRI accessory mount by mounting the included, removable anti-twist pins. A spring-loaded center locking lever tightens or loosens the clamp arm. The threaded mounting ends feature a rubber-topped platform. A thumbwheel rotates the studs, enabling you to tighten or loosen accessories.

Made from anodized aluminum, the mounting ends feature a ball joint system with an O-ring integrated into the ball. This allows you to tighten the clamp on the ball joints and lock it in place without having to overtighten the clamp. The ends can swing through more than 180° of arc, and can lock and be held in place by merely tightening the center knuckle.

Made from anodized aluminum, this clamp is flexible and lightweight.

The ball joint end with the 3/8"-16 threaded stud can be converted to be compatible with the ARRI accessory mount system by attaching the two included locating/anti-twist pins. These pins prevent your accessory from twisting while attached to the mount.

The integrated O-ring on the ball ends provides friction to hold the clamp in place while allowing the ends to move when the clamp is loosened.

The O-rings also eliminate the need to overtighten the clamp, thus reducing stress on the clamp and extending its useful life.

The spring-loaded locking lever allows you tighten/loosen the clamp even when you cannot move the lever through a full 360° of rotation.

Axler BCA-2AM Specs


Top Mount: 1/4"-20 Screw

Bottom Mount: 3/8"-16 Screw

Points of Articulation: 2

Total Length: 6.1" / 15.49 cm

Width: 2.48" / 6.30 cm

Weight: 6.9 oz / 196 g