ARA310947, Arrma 3S BLX HD 0.8MOD Spur Gear (57T) This is a replacement Arrma 57 Tooth HD 0.8MOD Spur Gear for use with the Arrma 3S BLX Big Rock, Granite, Senton and Typhon.  This product was added to our catalog on May 22, 2021

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