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Made in America Sim Racing Hardware

MM Simulations hardware

Build your setup around adjustable 4040 extrusion hardware. Start with our indexed monitor swivel or the compact two-arm keyboard kit, then choose the package that fits your rig.

The intricate machined components arrive as factory-complete mount assemblies. Attach the finished hardware to your compatible rig and arm or tray.

Pre-orders open. Orders start shipping November 1, 2026.

Presale pricing only. The prices shown apply to the presale.

Shipping is additional. November 1 is the start of dispatch, with carrier transit time additional. Current images are CAD design previews; more product photos will follow.

  • Monitor swivel presale prices: $79 for one mount, regularly $109.99. Choose two mounts for $120, or two mounts plus two separate 30-inch 4040 extrusion pieces for $169.99.
  • Keyboard arm kit presale price: $99 for two swivel mounts and two 10-inch 4040 extrusion arms, for 20 inches of extrusion in total. Keyboard, tray and supporting post are separate.

Select a product below for package choices, compatibility information and detailed specifications. Download the installation and use guides directly beneath the listings. Contact Mitchell for help matching the hardware to your extrusion.

Plan your installation

Installation and use guides

Simple guides to attaching the finished mounts and arms to your rig, fitting your monitor adapter or keyboard tray, and using the swivels. The mount assemblies are supplied factory complete.

MM 4040 Monitor Swivel installation and use guide cover
MM Simulations

MM 4040 Monitor Swivel

Attach the finished monitor mount, fit your monitor adapter, select a position and check clearance.

Download installation guide (PDF)
MM 4040 Two-Arm Keyboard Kit installation and use guide cover
MM Simulations

MM 4040 Two-Arm Keyboard Kit

Attach the finished mounts and arms to your rig, fit your keyboard tray and check movement and cable clearance.

Download installation guide (PDF)

A tested working load rating has not been published for these preorder designs. Send your extrusion, equipment and mounting details to mitchell@mmsimracing.com so we can review the intended application.

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Complete your setup