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Mossberg took the 590, one of the most trusted pump guns ever built, and reworked it for people who grew up running AR platforms. The headline change on the 590R is the ambidextrous rotary safety selector sitting right where your thumb expects it, which matters a lot on a pistol grip shotgun where the traditional tang safety becomes awkward to reach. Add a flat profile trigger with a clean break and a Magpul MOE+ pistol grip, and the controls feel familiar from the first shoulder-up.
This version, model 50756, runs an 18.5-inch cylinder bore barrel with a stand-off muzzle up front and a single-piece heat shield integrated right into the barrel assembly. The whole package, receiver, barrel, heat shield, and magazine tube, is coated in Flat Dark Earth Cerakote, a polymer-ceramic finish that shrugs off abrasion and moisture far better than standard bluing. With a 3-inch chamber and 6+1 capacity from the tube, it handles everything from light target loads to full-power buckshot and slugs.
The 5-position Mil-Spec style stock adjusts length of pull on the fly, so the same gun fits a smaller-framed family member or a shooter in a heavy jacket without tools or swaps. It includes an interchangeable recoil pad and two QD sling ports, and the redesigned compact forend is user-serviceable with a front M-LOK adapter for a light. Up top, a Picatinny rail sits at the right height for red dots, and the enlarged, beveled loading port with exposed follower makes reloads under pressure noticeably smoother.
At 36.4 inches overall and around 7 pounds, this is a maneuverable, well-balanced defensive shotgun that still points naturally. Pump actions earn their keep by cycling anything you feed them, and the 590R keeps that reputation intact while fixing the ergonomic gripes people have had with pistol grip 590s for years. It is a smart pick for home defense, patrol use, or anyone who wants a hard-use scattergun with modern controls.
The biggest change is the ambidextrous rotary safety selector mounted near the pistol grip, which works just like an AR safety. Standard 590s use a tang safety that gets hard to reach with a pistol grip stock installed. The 590R also adds a flat profile trigger, a redesigned user-serviceable forend, an integrated barrel and heat shield assembly, and an enlarged loading port.
No, this version has a fixed cylinder bore barrel with a stand-off muzzle device up front. If you want a threaded barrel, Mossberg offers the 590R in an AccuChoke-compatible configuration under model 50758. For defensive distances with buckshot, cylinder bore patterns work very well.
Yes, the receiver comes with a top Picatinny rail positioned for AR-style optics, so most red dots and prism sights bolt right on. The gun ships without iron sights, so plan on adding an optic or backup irons. The compact forend also has a front M-LOK adapter for mounting a weapon light.
The 3-inch chamber runs both 2.75-inch and 3-inch shells, from light birdshot for practice up to full-power buckshot and slugs. The tube magazine holds 6 rounds of 2.75-inch shells plus one in the chamber. Like any pump gun, it cycles low-recoil defensive loads without the reliability concerns some semi-autos have.
| UPC | 015813507561 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 50756 |
| Action | |
| ATF Type | Shotgun |
| Barrel Length | 18.5'' |
| Caliber/Gauge | 12 Gauge |
| Capacity | 7 |
| Chokes Included | Cylinder Bore |
| Color | Flat Dark Earth |
| Length | 36.4'' |
| Magazine Included | 1 x 7-Round |
| Model | |
| Package Height | 3.7 |
| Package Width | 9.0 |
| Product Type | Shotgun |
| Shipping Weight | 9.65 |
| Sights | No Sights |
| Sights Type | Night Sights |
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