Check the listing for details. Ruger Mk Series (Mark 4 and older) Magazine Bumper Bottom (10 pack). Color: Black, Condition: New. Listed at 44.99 USD. Buyer receives 10 each injection molded magazine bumper bottoms to replace original factory Ruger magazine bottom. Standard Mag bumpers offer a little more length than standard factory bumper without changing the overall look of your pistol. Magazine, Pistol, and any other item(s) shown in picture ARE NOT included. Color is Black. • The Mag Bumper is a stylish and functional accessory for your Ruger MK Series Pistol. • Extra Length provides a positive grip to remove stubborn magazines, plus small extension below the grip to "bump" the magazine until it is fully seated. • The Mag Bumper is designed to fit the Ruger MKIV (Mark 4) Models. Will also work with MK 2 and MK 3 older series pistols • Installs in Seconds Made In USA Free Shipping to 48 States Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.