Overview Reviews Product Description Shield Arms +5/+4 Magazine Extension, Aluminum, Anodized Finish, Red, Fits Glock 19/23 G19-ME-5-RED Product Videos Product Reviews Write a Review Write a Review × Shield Arms SHIELD MAG EXT +5/4 FOR GLK19/23 RED Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *