Description
The Advanced Technology Shotforce Marine Top-Folding Stock takes your pump gun from full-length to compact in a heartbeat, and back again just as fast. The whole point of a top-folder is that it hinges over the top of the receiver rather than off the side, which keeps the profile slim and lets you fire the gun with the stock folded or extended. A quick-release button locks it into either position, so you can stow it tight for transport and deploy a full shoulder stock the moment you need one. What sets the Marine version apart is the stainless steel hardware, which is what you want if your shotgun rides in a boat, a truck bed, a duck blind, or anywhere the air stays damp.
What Makes the Marine Shotforce Different
The stock body is molded from DuPont extreme-temperature glass-reinforced polymer, so it stays light without feeling flimsy, and it handles heat and cold without getting brittle. The stainless hardware and spring resist corrosion far better than the plain steel you find on standard folders, which is the entire reason this one carries the Marine name. It also holds up to scratches and weather, so it looks the part after years of real use rather than sitting pretty in a safe.
Fitment and Setup on Your Shotgun
The Shotforce Marine ships with the adapters and hardware to fit a wide range of popular pumps, including the Maverick 88, Mossberg 500, 535, 590, and 835, the Remington 870, and Winchester 1200 and 1300 models. Installation is straightforward and most folks knock it out with basic hand tools in a few minutes. Some models seat as a proud fit and a little minor fitment work may be needed depending on your exact gun.
Everyday Handling and Grip
The integral pistol grip is textured and fully ambidextrous, so lefties and righties both get a solid hold, and the stock itself is reversible to match. There is a sling swivel stud built in for your favorite sling, and the body comes pre-drilled to accept an ATI shotshell holder if you want spare rounds riding on the stock. It is a rugged, no-nonsense setup that trades a little comfort for serious compactness and versatility.
Key Specifications
- Manufacturer: Advanced Technology (ATI Outdoors)
- Model: Shotforce Marine Top Folder
- Manufacturer Part Number: MTF4900
- UPC: 758152549006
- Color: Black
- Product Type: Top-Folding Stock
- Material: DuPont Extreme Temperature Glass-Reinforced Polymer
- Hardware: Stainless Steel (corrosion resistant)
- Grip: Integral Textured Pistol Grip, Ambidextrous
- Handedness: Reversible for Right or Left Handed Use
- Fires: In Opened or Folded Position
- Compatibility: Maverick 88, Mossberg 500/535/590/835, Remington 870, Winchester 1200/1300
- Extras: Sling Swivel Stud Included, Pre-Drilled for Shotshell Holder
- Made In: USA
- Warranty: Limited Lifetime Warranty
What’s Included
- Shotforce Marine top-folding stock with integral pistol grip
- Mounting adapters for supported shotgun models
- Stainless steel mounting hardware and spring
- Sling swivel stud
- Installation instructions
Frequently Asked Questions
What shotguns does the Shotforce Marine folding stock fit?
It comes with adapters to fit the Maverick 88, Mossberg 500, 535, 590, and 835, the Remington 870, and Winchester 1200 and 1300 models in 12 and 20 gauge. Several of these seat as a proud fit, so a little minor fitment work may be needed depending on your exact gun. Check your barrel and receiver setup against the list before ordering.
What makes the Marine version different from the standard Shotforce folder?
The Marine edition uses stainless steel hardware and spring instead of plain steel, which resists corrosion in humid and coastal environments. That means you can stow the gun in a boat, truck, or damp storage without worrying about rust on the fasteners. The polymer stock body is the same tough glass-reinforced material either way.
Can you shoot the shotgun with the stock folded?
Yes. The top-folding design lets you fire the shotgun in either the folded or extended position, and the quick-release button locks it into whichever setup you want. Folded gives you a compact package for tight quarters, while extended gives you a full shoulder stock for accuracy and recoil control.
Is the Shotforce Marine stock hard to install?
Not at all. Most owners install it in a few minutes with basic hand tools once the gun is unloaded and safe. Just place the correct adapter for your model into the grip and secure the stock with the included stainless hardware.



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