Left side view of Mossberg M590A1 with heat shield above the barrel.
Source: US Army - © Public domain
Full size Mossberg 590 with marine coating and rifle style grip. Easily identified by the color of the coating.
Tactical model of the Mossberg 590 with adjustable stock, pistol grip, Picatinny sight rail and slimline slider with handstrap. Can be converted to a breaching shotgun by replacing the stock with an angled pistol grip.
Short variant without stock. Intended for breaching. Features a pistol grip, 6 round tubular magazine, slider with strap and muzzle brake suitable for breaching.
Baseline Mossberg 590A1 tactical shotgun. Features a rifle style grip, ghost ring or bead sights, 18.5 inch barrel and 6 round tube. Also available with 20 inch barrel and 8 round tube.
Compact model Mossberg 590A1 tacitcal shotgun with 14 inch barrel, 5 round tube, ghost ring sights and rifle style grip.
Mossberg M590A1 with Magpul adjustable stock, MLOK foregrip and Picatinny sight rail. Based on the model with 20 inch barrel and 8 round tube.
The Remington M870 is a direct competitor to the Mossberg M590 range of shotguns. Like the M590 the M870 also comes in a lot of variants.
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