BOGO: MAGPUL PMAG D50 GL9 Drum Magazine for Glock~ 50-Round get a box of 9mm ammo free.

With Magpul's D-50 GL9 magazine, you won't have to complain about sore thumbs from reloading magazines, because most of your range session will fit into this bad boy. This 50-round drum magazine has been optimized for use on Glock®handguns, and it's been built with the features from the company' other 9mm drum magazines, ensuring that you get the best possible performance while keeping that trigger finger happy. The Magpul D-50 GL9 includes an increased feed-tower length, which makes it compatible with today's popular Glock®models. The unique design of the drum makes the overall size of the unit more manageable, and there's a ratcheting mechanism for loading that saves your fingers when reloading 50 rounds. You can keep an eye on the number of rounds you have remaining, thanks to the rear round-count window and a rolling capacity indicator. The design will also lock your slide back, thanks to the built-in bolt hold-open device. Magpul warns that users of the D-50 GL9 magazine with Gen 1-3 Glocks will likely need a new factory magazine release installed to support the drum's weight. Gen 4 Glocks will need a strengthened aftermarket magazine release, and all models may need a new extra-power recoil spring to ensure reliability. Use of the D-50 GL9 in pistol-caliber carbines is also not recommended, because of the height of the feed tower.

Magazine Restriction
Please check with your state regulations for ownership of large capacity magazines.