GrovTec USA GTSW308 Push Button Mag-Cap

GrovTec USA GTSW298 Mossberg 590 PB MagazineCAP Set

GrovTec Push Button Shotgun Magazine Cap with 1" QD Sling Swivel Remington 870 Express 12 Gauge Steel Black

GrovTec Sling Swivel Set Remington 870 Express Magazine Cap with Swivel Stud Locking Swivels Rear Screw Swivel Stud 12 Gauge Steel Black

GrovTec Sling Swivel Set Mossberg 500 Magazine Bolt with Swivel Stud Locking Swivels Rear Screw Swivel Stud 20 Gauge Steel Black

Uncle Mikes 1803-2 Magazine Cap/Swivel Set 1187 12G

Uncle Mike's QD Shotgun Sling Swivel Cap Set Mossberg 590, 835 12 Gauge 1" Black

Uncle Mike's QD Sling Swivel Cap Set Remington 870 (Internal Ratchet-Type System) 12 Gauge 1" Black