Maximize your Glock 43X/48's capacity with the Shield Arms S15 Gen 3 magazine, now available preowned in like-new condition. This innovative magazine boosts your capacity to 20 rounds with the addition of a +5 base plate extension, blending unparalleled performance with superior reliability. Crafted with a durable Nitrocarb finish, this magazine is designed to withstand the rigors of extensive use. The unique easy access floor plate design allows for swift spring and follower access, simplifying maintenance without needing to remove the extension.