DOES NOT FIT MOSSBERG 500; See the Giles Sling for Mossberg 500 or Single-Point Slings for options.
Front sling plate adapter MAY NOT FIT MOSSBERG 590A1 heavy barrel due to its increased diameter. To solve this fitting problem, we advocate using the Vang Comp Systems 1-shot extension tube with built-in sling mount from acclaimed shotgun builder Hans Vang. They are robust, extremely well-made, and are a reliable way of getting our sling on the hard-to-fit 590A1 heavy barrel. Find them here.
Due to varying tolerances in Mossberg's placement of the rear sling-swivel stud on SpeedFeed stocks, the user may need to adjust the stud's placement to work properly with the sling's rear attachment.