RigLab / Parts / Rigging / SmallRig 3873 magic arm

SmallRig 3873 magic arm

Name: SmallRig 3873 magic arm
Brand: SmallRig

Build a camera rig around the SmallRig 3873 magic arm in RigLab: snap it onto real mounts in 3D at true scale, and see the weight, balance and total cost of the whole rig before you buy anything.

Put it on a rig in 3D

SmallRig 3873 magic arm specs

Brand	SmallRig
Category	Rigging
Price	$29.99
Weight	88 g
Dimensions	119 mm arm · ⌀20 mm balls
Specs	dual ball heads · 1/4"-20 both ends · 5.5 kg

Mount points

These are the connections RigLab checks when you attach the 3873 magic arm to other parts:

end A screwend B screw

Example rigs that use it

Pocket creator rig — Muse on a tilt mount, iPhone monitor on a magic arm, twin handles, Anker power.
Pocket cam + phone monitor — Muse on a tilt mount with an iPhone showing its feed and a side handle on an L-bracket.
A + B camera plate — R100 with a 70-200 on a cheese plate, the Muse co-aimed as a B-cam, iPhone monitoring it.
FX3 cine kit — Sony FX3 with an MC-11 and Sigma 18-35 Art, a Shinobi monitor on a magic arm.
Pocket cam grip — Muse on a side handle and arm with an ND64, and the Anker as a battery grip.
Phone vlog stick — iPhone on a MagSafe plate and magic arm with the Mic Mini receiver plugged in.
Desk B-roll — Cheese plate base, Muse on a tilt mount and a phone monitor for top-down shots.