Chief J-Series Ext Arm Kit - Silver - MAC1003S is backordered and will ship as soon as it is back in stock.
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Product Overview
The Chief MAC1003S J-Series extension arm kit converts a single-arm or pivot/tilt flat panel wall mount into a full extension display solution. It is built for commercial AV installations where a display needs to pull away from the wall for improved viewing angles or rear service access. The kit ships in a silver finish to match light-colored mounts and architectural finishes.
Product Description

The MAC1003S adds extension capability to compatible Chief J-Series flat panel wall mounts, giving integrators a way to upgrade a fixed or low-profile installation without replacing the entire mount. By transforming a single arm or pivot/tilt mount into a full extension product, it allows the display to be pulled out from the wall for cleaning, cabling, or angle adjustment. This is useful in huddle rooms and meeting spaces where the display must be repositioned for different seating arrangements. The silver finish keeps the hardware visually consistent with lighter mounts and surrounding hardware. For installers standardizing on Chief J-Series mounts, the kit provides a consistent upgrade path across multiple rooms. The black version is available as the Chief MAC1003B. Browse the full Chief collection for compatible mounts and accessories.
Key Features
- Extension conversion — Transforms a single arm or pivot/tilt mount into a full extension display solution.
- Silver finish — Silver finish matches light-colored mounts and architectural environments.
- Field upgrade — Adds extension capability to existing J-Series mounts without a full replacement.
- Commercial AV ready — Suited to conference room, huddle room, and digital signage displays.
Technical Specifications
| Model | MAC1003S |
| Manufacturer | Chief (Legrand AV) |
| Type | Extension arm conversion kit |
| Color | Silver |
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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