Kupo

Kupo KG601812 Pivoting Boom Arm Clamp

4.3 (77 reviews)

Convert any C-Stand riser into a boom arm with Kupo's solid aluminum pivoting clamp featuring junior pin and baby receiver.

$94.95*$111.99Save 15%
Check availability

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The Kupo KG601812 Pivoting Boom Arm Clamp is a specialized grip accessory designed to extend the functionality of your existing C-Stand equipment. Rather than purchasing a separate boom arm assembly, this clamp allows you to repurpose a C-Stand riser section as a boom, giving you overhead and offset positioning capability for lights, flags, scrims, or other accessories. The body is constructed entirely from aluminum die-casting, ensuring it can bear the mechanical stress of boom-mounted loads without flexing or slipping.

The clamp features two standard professional mounting interfaces: a 1-1/8" (28mm) junior male pin and a 5/8" (16mm) baby female receiver. These fittings are widely used across professional grip and lighting hardware, making the clamp compatible with a broad range of stands and accessories. An internal insert secures boom tubes in the 1.2" to 1.4" (30–35mm) diameter range, and the pivoting mechanism lets you dial in the precise boom angle before locking it down. For studio crews and on-location professionals looking to maximize the versatility of their C-Stand inventory, this clamp is a practical and space-efficient addition to the grip bag.

Key Features

SPECIFICATIONS: Pivoting boom arm clamp constructed from aluminum die-casting with junior 1-1/8" male pin and 5/8" baby female receiver for C-Stand boom conversion.

C-STAND BOOM CONVERSION: Allows a riser section to function as a boom arm for flexible lighting placement.

DUAL MOUNTING INTERFACES: Junior pin and baby receiver support versatile mounting options on professional stands.

SECURE TUBE FIT: Internal insert accommodates boom tubes within a specific diameter range for stable clamping.

PROFESSIONAL RIGGING TOOL: Designed for controlled adjustments and dependable performance on set.

Specifications

Construction
Solid Aluminum Die-Casting
Male Pin
1-1/8" (28mm) Junior
Female Receiver
5/8" (16mm) Baby
Boom Tube Fit
1.2"–1.4" (30–35mm) diameter

Pros & Cons

👍 Pros

  • Solid aluminum die-casting provides strong, durable construction
  • Dual mounting interfaces (junior pin and baby receiver) offer versatile compatibility with professional stands
  • Pivoting mechanism allows adjustable boom angles for precise positioning
  • Eliminates the need for a dedicated boom arm by converting existing C-Stand risers
  • Compact and lightweight design adds minimal bulk to your grip kit

👎 Cons

  • Accepts only boom tubes between 1.2" and 1.4" diameter, limiting compatibility with tubes outside that range
  • Does not include a boom tube or counterweight — these must be sourced separately
  • Junior pin and baby receiver sizes may not match some non-standard or consumer-grade light stands

Frequently Asked Questions

The Kupo KG601812 accommodates boom tubes with a diameter between 1.2 inches and 1.4 inches (30–35mm) via an internal insert.
It comes with a 1-1/8" (28mm) junior male pin and a 5/8" (16mm) baby female receiver, which are standard professional grip fittings.
The clamp is constructed from solid aluminum die-casting, providing durable and rigid support for boom arm configurations.
You attach the clamp to a riser section using its pin and receiver interfaces, then insert a boom tube into the clamp. The pivoting design allows you to angle the boom arm as needed for overhead or offset positioning.
The clamp features a pivoting mechanism that lets you adjust the boom angle, then lock it securely in place for stable rigging.