Brownells BRN-10 Slip Ring Matte Black
Product Features & Specifications Retro Slip Ring. Replicates Early M16 Rifles Contours. Brownells BRN-10 Retro Slip Ring replicates the contour of the slip rings used on early M16 rifles, so it'll add an extra touch of period authenticity to your next "retro" AR-style .308 build. This slip ring
