SmallRig Magic Arm with Dual Ball Heads (1/4″-20 Screws)
Price Guarantee Rent Now
Category: General Photo Accessories
The SmallRig 3873 Magic Arm with Dual Ball Heads is a durable, versatile mounting accessory designed to attach and flexibly position equipment such as monitors, viewfinders, LED lights, wireless transmitters, and microphones on camera cages and rigs. Constructed from lightweight aluminum alloy and stainless steel, it supports a heavy payload capacity of up to 12 lb. Featuring 1/4″-20 screw mounts with anti-twist locating pins on both ends, dual ball heads with anti-slip silicone gaskets, and a single ergonomic center locking lever, the 3873 arm allows for quick, secure position adjustments and stable support.
Key Features and Specifications
* Heavy-Duty Load Capacity: Supports up to 12 lb (5.5 kg), making it capable of holding heavier external camera monitors, wireless gear, or lighting accessories.
* Dual Ball Head Design: Provides 360-degree articulation for smooth angle adjustments, locked securely via a single ergonomic center wingnut lever.
* Dual 1/4″-20 Screw Mounts: Equipped with standard 1/4″-20 threaded screws on both ends featuring thumbwheels for fast, tool-less mounting to camera cages and accessories.
* Anti-Twist Locating Pins: Integrated retractable locating pins prevent attached equipment from twisting or unscrewing during use.
* Anti-Slip Silicone Gaskets: Silicone rings on the ball mounts increase grip friction, ensuring smooth positioning and strong locking strength.
* Durable Metal Build: CNC-machined aluminum alloy and stainless steel construction for long-lasting durability without adding excessive weight to your rig.
Condition and Included Accessories
* Included Accessories: SmallRig 3873 Magic Arm unit and magnetic adjustment wrench included (extra replacement silicone rings are NOT included).
Check your selection
Confirm your chosen option and quantity before paying.
Delivery timing
Check the estimate before ordering for a particular date.
Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
View policyRefund enquiries
Contact the store with the order number and item you are asking about.
Please contact us for the refund processing timeframe before returning an item.
View policyShipping charges
Review the charge for your selected delivery service.
Standard Shipping · United States: $0.00
Express Shipping · United States: $3.99
View policyPlanning a return
Contact the store before returning an item; the policy below applies.
United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
View policy








