The stock H&K MP5-A5 batteries barely fit in the handle. And not without a fight! Not Anymore! DDMM's line of handle upgrades make battery changes fast and easy. And they look good doing it! DDMM's new line of handles come in variants! Color options are coming SOON! Be the first on field with a DDMM MP5-A5 mod set. All seven variants are available with a matching CUSTOM stock! The versatility of a collapsing stock with the accuracy of a long gun! Coming soon Picatinny top rail for optics!