3.25" Arca-Swiss Compatible Quick Release Clamp | Long Black Knob

This precision-engineered Arca-Swiss compatible clamp is a versatile mounting solution designed for photographers who require high leverage and absolute security. Featuring a high-force long black captive knob and a multi-point mounting interface, this 3.25-inch clamp delivers the stability needed for professional tripod and monopod systems.

Key Features & Quick Overview

• Dual Mounting Interface: Center socket is countersunk on top for 1/4-20 or M6 screws and is natively threaded for 3/8-16 studs.
• Precision Dual Mounts: Includes two outside 1/4-20 tapped holes spaced exactly 45mm apart for specialized multi-point attachments.
• Safety Relief Grooves: 2.6mm deep relief grooves ensure compatibility with Arca-type plates featuring safety stops, preventing gear "free fall" if the clamp is partially open.
• Field-Safe Captive Knob: The ergonomic long black knob stops at maximum opening to prevent loss in the field and features a one-piece, dust-resistant design.
• Anti-Twist Integration: The rear side features a dedicated groove to match professional ball head connections, preventing unwanted rotation during use.
• Premium Construction: CNC-machined from solid 6061-T6 aircraft-grade aluminum with a durable black hard-coat anodized finish.
• Made in the USA: Proudly manufactured with professional-grade tolerances for lifelong reliability.

Professional Arca-Type Quick Release Solution

Upgrade your camera support gear with a professional Arca-style clamp built for technical photography. The 3.25-inch jaw length provides an ideal balance of surface contact and compact design, offering a rock-solid connection for telephoto lenses and modular camera rigs. Its "Micro-Vise" design ensures a tenacious, twist-free grip on any compatible plate from brands like RRS, Kirk, Wimberley, and Markins.

Advanced Safety and Field Reliability: This clamp is engineered for total system interoperability and maximum reliability. The integrated 2.6mm deep safety relief grooves serve as a critical fail-safe against accidental gear drops, while the captive hardware ensures you are never stranded on a location shoot due to a missing knob. The long black knob provides extra torque, making it easy to secure heavy equipment even while wearing gloves.

Technical Specifications

• Jaw Length: 3.25 Inches (82.5mm)
• Knob Type: Long Black (Captive Design)
• Dual Mount Spacing: 45mm (1/4-20 Tapped)
• Center Threading: Threaded 3/8-16 and Countersunk for M6/1/4-20
• Relief Groove Depth: 2.6mm
• Material: CNC Machined 6061-T6 Aluminum
• Finish: Black Hard-Coat Anodized