Many PCC shooters use extended Glock Magazines, often with long base pads added for even more capacity.To ensure the best possible retention in our Racer and Race Master mag pouches, we are pleased to offer this dedicated extended Glock Side spacer.Simply assemble this spacer instead of your short one, and allow the bottom of your long mag to extend out the bottom of the pouch body, for a more balanced more secure retention.The long spacer offers three hole positions in which to place the stopper, giving you the ability to experiment and decide for yourself what the best depth for your magazine is. NOTE:  this spacer is not compatible with the Alpha-X line of pouches. Magazine and Magazine Pouch not inlucded!