The new Bridge-Lock stabilizer mount. P.J. Reilly Also new this calendar year will be the Bridge-Lock stabilizer system. Continuing the Bridge-Lock accessory technique initiated past year with a dovetail cutout within the riser over the shelf to hold a sight, Mathews developed A different dovetail slot beneath the normal 5/16-24 https://buybeararcheryonline.com/product/mathews-bow-archery-phase-4-29/