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SmallRig Extension Rig for Sony FX3 XLR Handle

BH #SMMD3490 • MFR #MD3490
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SmallRig Extension Rig for Sony FX3 XLR Handle
Key Features
  • Extend FX3 XLR Handle Grip by 1.2"
  • 1/4"-20 and 3/8"-16 Accessory Threads
  • Shoe Mount, Removable NATO Rail
  • Installs with 2 x 1/4"-20 Screws
Extend the grip on your Sony FX3 XLR handle and add accessories using this Extension Rig from SmallRig. The durable aluminum rig extends the length of the FX3 XLR handle unit by 1.2". It provides multiple 1/4"-20 and 3/8"-16 ARRI-style accessory threads, a shoe mount, and a NATO rail. The rig installs onto the back of the handle using two included 1/4"-20 screws, and the NATO rail is removable.
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SmallRig MD3490 Overview

Extend the grip on your Sony FX3 XLR handle and add accessories using this Extension Rig from SmallRig. The durable aluminum rig extends the length of the FX3 XLR handle unit by 1.2". It provides multiple 1/4"-20 and 3/8"-16 ARRI-style accessory threads, a shoe mount, and a NATO rail. The rig installs onto the back of the handle using two included 1/4"-20 screws, and the NATO rail is removable.

Compatibility
Sony FX3 XLR handle

SmallRig MD3490 Specs

Material of Construction
Aluminum
Accessory Mounting
Multiple 1/4"-20 Threads
Multiple 3/8"-16 ARRI-Style Accessory Threads
1 x NATO Rail
Interface
2 x 1/4"-20 Screws
Extension
1.2" / 30 mm
Dimensions
4.7 x 1.3 x 1.1" / 118.8 x 33.7 x 28 mm
Weight
3.2 oz / 90 g
Packaging Info
Package Weight
0.295 lb
Box Dimensions (LxWxH)
4.5 x 3.9 x 1.4"

SmallRig MD3490 Reviews

A+ build quality, a must-have addition

By Chris B.
Rated 5 out of 5
Date: 2025-09-18

As is usual for SmallRig, the quality is outstanding. Since it's metal (and the Sony handle is plastic), it's literally more robust that OEM. Clearly the team who designed this also films, because they've crammed a lot of customization options into every square mm. I bought it mainly for the nato rail on top (so I could mount the Zacuto Micro Boom properly), but the cold shoe on the back, extra space to grip the handle, and threads on the top have proved invaluable. This is how the handle should have come from Sony. If you're even slightly considering this, get it. You won't be disappointed.

SmallRig Extension Rig for Sony FX3 XLR Handle

By Vladimir
Rated 5 out of 5
Date: 2023-02-14

A very comfortable handle that turns the XLR Handle into a full-fledged holder with the possibility of attaching additional equipment. I recommend!

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