# Master Airscrew MR Series 12x4.5 Prop Set (1 CW + 1 CCW)

![Master Airscrew MR Series 12x4.5 Prop Set (1 CW + 1 CCW)](https://parts.trymaglev.com/img/dr-masterairscrew-mr-12x45.webp)

California-made glass-fiber composite 12x4.5 multirotor prop pair.

- Maglev ID: dr-masterairscrew-mr-12x45
- Brand: Master Airscrew
- MPN: MA.MR12x45SB2
- Category: drone / Propellers
- Origin: US (made in)
- Maker: Master Airscrew (Windsor Propeller company) (factory, US)
- NDAA: unknown · Blue UAS: unknown · FCC: n/a
- HTS: 8807.10.00 (typical)
- MOQ: 1 · Lead time: unknown
- Confidence: VERIFIED

## Price
- 1+: $11.39 (list, 2026-10-29, https://www.masterairscrew.com/products/mr-series-12x4-5-prop-set-x2-black)

## Specifications
- Diameter: 12 in (304.8 mm)
- Pitch: 4.5 in
- Material: Glass-fiber-reinforced composite
- Weight: 21.5 g per prop

## Links
- Product: https://www.masterairscrew.com/products/mr-series-12x4-5-prop-set-x2-black
- Datasheet: https://www.masterairscrew.com/pages/mr-drone-propellers
- CAD: none

## Equivalents
- KDE Direct KDE-CF125-DP 12.5x4.3 Dual-Blade (CW/CCW pair) (dr-kde-cf125-dp)
- T-MOTOR MS1101 Polymer Prop (pair) (dr-tmotor-ms1101)

## Sources
- https://www.masterairscrew.com/products/mr-series-12x4-5-prop-set-x2-black (specs, SKU, price (Shopify .json))
- https://www.masterairscrew.com/pages/about-us (made in California)