The new Bridge-Lock stabilizer mount. P.J. Reilly Also new this year is the Bridge-Lock stabilizer technique. Continuing the Bridge-Lock accessory program initiated final year with a dovetail cutout within the riser higher than the shelf to carry a sight, Mathews designed another dovetail slot underneath the standard five/16-24 stabilizer bushing. https://buybeararcheryonline.com/product/mathews-bow-archery-phase-4-29/