Grex A150025 - Trigger button Grex from $9.10 $11.10 Qty. Add to Cart SKU: GRX-A150025 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Genuine Grex replacement part A150025 - Trigger button. For Grex Models XA. Chart referance number 12. Tweet