Shield Arms DS18 Magazine for Glock 19 Features The Shield Arms DS18 is engineered to work with Glock pistols and Gen 3 clones packing 18 rounds of 9mm into a body that fits flush with 19 size frames. The steel construction is heat treated to RHC 45-50 for durability and the black nitrocarburize finish resists wear and corrosion over heavy use. An over-insertion stop stamped into the steel body prevents the magazine from being seated too far protecting the mechanism and helping ensure consistent reliable feeding round after round. Custom high impact nylon components are used throughout for smooth cycling and long service life. Designed to be compatible with Shield Arms magwells the DS18 pairs well with flared magwell setups for faster more confident reloads under pressure. The flush fit profile keeps the magazine from printing or adding unnecessary bulk preserving the factory feel and concealability of a Glock 19 while adding meaningful capacity. Shooters who carry for self defense or compete with a Glock 19 platform gain three extra rounds without stepping up to a bulkier extended magazine. The Shield Arms DS18 is a dependable upgrade for anyone who wants OEM level reliability with more rounds on tap. Shield Arms DS18 Magazine for Glock 19 Specifications Manufacturer: Shield Arms Model: DS18 Type: Magazine Caliber: 9mm Capacity: 18 Rounds Color: Black Finish: Nitride Compatible Hosts: Glock 19 Glock 19/23 Material: Steel Available At: GrabAGun