Remington Model 870 Special Purpose Marine Magnum


The Remington Model 870 Special Purpose Marine Magnum is a pump-action hunting shotgun chambered in 12 gauge. The M870 is a family of pump-action shotguns with a variety of hunting and tactical models. However, the Marine Magnum is one of the most unique. It is resistant to corrosion and water because the 18″ barrel’s finish is electroless nickel plated inside and out.

In a nutshell, electroless nickel plating deposits a nickel finish on the metal’s surface without using an electric current. This procedure deposits the finish evenly as opposed to an electroplating nickel finish. However, it doesn’t have as long of a lifespan.

Otherwise the Marine Magnum features a black synthetic stock with checkered grips. A single bead front sight and it comes with a padded Cordura shell bag. It is also available with a black TriNyte finish even though Remington has discontinued production of that model. Remington recommends the Marine Magnum for hunting small or any winged game.



Model 870 Special Purpose Marine Magnum
Capacity: 6
Sights: Single bead
Features: Corrosion and water resistant; and padded Cordura
Gauge: 12 gauge
Stock: Synthetic/black
Material/Finish: Black TriNyte (Discontinued)<br />Electroless nickel-plated
Type: Pump
Chokes: Cylinder
Website: http://www.remington…
Weight: 7.5 pounds
Barrel Length: 18"
Length of Pull: 13.75"<br />14"
Overall Length: 38.5"
Drop at Comb: 1.5"
Drop at Heel: 2.5"

Editor Review

If I were to set sail in a boat, anywhere in the world, for any length of time, I would most certainly want some form of protection on board.  My ideal arsenal would include an AR-15 platform rifle, a .45 ACP handgun and a 12 gauge shotgun.  Not just any shotgun but a Remington 870 Marine Magnum.

I am doubtful that there is a more handsome looking utility shotgun as the Marine Magnum is crafted from a single billet of steel and all metal parts are nickel coated –that includes the inside of the barrel and the receiver. There is no factory made toehold for corrosion on this shotgun.

Also, the cold steel complimented by the black stock and pump tend to give it an intimidating look sure to dissuade even the most fool hardy pirates or home invaders.

Not only does it look great, it also fires very well, even from the hip (although no firearms instructor will ever teach that unless in a purely defensive situation).  However, I wouldn’t recommend using it for long-range shots because it has such a short barrel the shot would spread fairly quickly. But targets up close would be obliterated.

Whether delivering a load of #8 birdshot or 3” magnum 00 Buckshot, it’s been accurate with negligible recoil.

This shotgun gets five stars from me because it is exactly what it is purported to be and nothing else.  There are no unwanted surprises what-so-ever.

My one criticism and maybe it’s because I’m truly notused to it, is the reflection.  The nickel plating is very reflective and bright sunlight can cast a serious glare.  On board a boat or if you’re lost at sea, you could use that reflection to signal rescuers and fend off sharks at the same time.  Otherwise don’t plan on it blending in anywhere.