The Model 870 DM feeds from a detachable box magazine that can hold six shells. The magazine attaches to an extended aluminum magazine-well housing attached on the underside of the receiver, where shells would normally feed into the tube. The use of a box magazine instead of the traditional tube magazine gives the Model 870 DM the ability to reload faster, as well as change between shell loads in different magazines with ease.
The single-stack magazines are detached with the use of a release paddle located on the front of the magazine well. Other than the additional magazine well, the controls on the Model 870 DM are the same as those found on standard versions of the Model 870. Despite there being some changed to the internals of the Model 870 DM, The tube magazine is still present and serves as a guide for the for-end.
The Remington Model 870 DM is chambered for 12-ga. with an 18.5" barrel, and can take 3" shells. It weighs in at 7 lbs. 4 oz. with an unloaded magazine. The standard furniture is made from black polymer, though camouflaged options were made available for hunters. Currently, the 870 DM lineup has ceased production, following Remington Outdoors' bankruptcy. The Remington facility in Ilion, NY, has restarted production of the 870 shotgun line, but there's no word on the relaunch of the DM models.
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