The Shield Arms Premium Magwell is a competition-grade aluminum magwell precision-engineered for Gen 6 Glock 17 and 45 full-size pistols. It features a maximum-opening funnel design that dramatically reduces reload times and eliminates fumbled magazine insertions under pressure making it essential equipment for competitive shooters and tactical professionals. Pairs perfectly with the Glock 17/22/34/35/19X/45 +5/4 Mag Extension for maximum capacity Also available: Shield Arms Carry Magwell for lower-profile concealed carry applications Works seamlessly with Glock 17+5 Pre-Installed Magazine Extensions