Mossberg 590RM Puts an AK-Style Mag on a Pump Shotgun
Mossberg's 590 series is already a staple in the pump-action world, but the 590RM swaps the usual tube magazine for a detachable box, and Military Arms Channel took a quick look at why that matters.
Snapshot
In a video from Military Arms Channel, the presenter walks through the 590RM, calling it a "baby shotgun" thanks to its stubby barrel and compact build. The main takeaway: the AK-style detachable magazine is the standout feature, setting this 590 apart from Mossberg's traditional tube-fed pumps.
Key points
- Short and stocky: the 590RM runs an 11.5-inch barrel threaded for chokes, giving it that compact "baby shotgun" look the presenter references.
- Detachable box magazine: the presenter highlights how it rocks into place like an AK mag and releases via a rear paddle, calling it the gun's coolest feature; the magazine shown holds 15 rounds, and he says the owner also has a 20-rounder.
- Folding Chisel stock: adjustable for length of pull and folds to the side, paired with a pistol grip for a more modern layout.
- Controls and rail: ambidextrous selector levers sit in a familiar spot, with a top 1913 rail available for optics or accessories.
- Finish and future plans: the shotgun wears a flat dark earth finish, and the video teases an upcoming comparison against a self-loading 12-gauge.
Quick take
If you've wanted a 12-gauge pump that handles more like a modern carbine, the 590RM's magazine-fed setup and folding stock are worth a look. Military Arms Channel treats this as a first impressions piece, so the real test will come when the promised comparison against a semi-auto shotgun drops.
Watch the full video: Military Arms Channel