When Shield Arms released the S15 magazine for the Glock 43X and 48, they changed the concealed carry game. By using steel instead of plastic for the magazine body, they increased capacity by 5 rounds without changing the magazine dimensions. To maximize performance, Shield Arms designed a matching steel magazine catch/release that offers improved durability, smoother operation, and better long-term reliability than factory polymer releases. Product Details Manufacturer: Shield Arms Product: S15 Magazine Catch / Release Item Number: G43X-EMR-BLUE Type: Aftermarket (Not Glock factory) Material: Steel Finish: Peacock Blue (Iridescent) Made in: USA Compatibility: Glock 43X, Glock 48 Product Features Optimized to work with Shield Arms S15 magazines Reversible installation for right- or left-handed shooters Compatible with Gen 1 and Gen 2 S15 magazines Chamfered and textured button for positive grip Lower profile design for concealed carry Improves durability over factory polymer magazine catch