F Magpul Forward Sling Mount - Rem 870 and Mossberg 500/590 $28.45 MAG508 show more like this Calculated in Cart Primary Arms F Magpul MAG508-BLK Forward Sling Mount made of Steel with Melontie Black Finish for Remington 870; Mossberg 500 590; Maverick $32.97 MAG508-BLK show more like this $10.95 flat rate GunStuff TV F Magpul Forward Sling Mount for Remington 870, Mossberg 500, 590 and Maverick 88 $34.99 MAG508-BLK show more like this from $4.99 GunMagWarehouse F Magpul Forward Sling Mount - Remington 870 and Mossberg 500/590 MAG508 $34.99 MAG508 show more like this $18 Firearms Palmetto State Armory F Magpul Forward Sling Mount Mossberg 500/590 & Remington 870 - Forward Sling Mount For Mossberg 500/590 & Remington 870 $37.95 MAG508-BLK show more like this $12.50 Brownells F Magpul Forward Sling Mount Remington 870, Mossberg 500, 590 Steel Melonite Black - 458557 $37.95 MAG508-BLK show more like this 5.00 MidwayUSA F Magpul MAG508-BLK Forward Sling Mount made of Steel with Melontie Black Finish for Remington 870; Mossberg 500, 590; Maverick $37.95 MAG508-BLK show more like this Calculated in Cart Classic Firearms F Magpul Forward Sling Mount Remington 870 Mossberg 500/590 and Maverick 88 Steel Melonite Black MAG508-BLK $49.97 MAG508 show more like this $10 Flat for Firearms Cheaper Than Dirt