F.A.B. Defense115819884
FAB Defense FXPRMO 7.91" Polymer Rail System with Black Finish & Picatinny Rail for Mossberg 500/590 & Maverick 88$59.40
Availability: In Stock
Current Stock: Out of stock
If you run a Remington 870 and want to modernize your shotgun with rail-mounted optics and accessories, the FAB Defense FXPR870 PR-870 Polymer Rail System is a straightforward way to add Picatinny real estate to your forend. This 7.30-inch reinforced polymer rail system replaces your factory forend and gives you three mounting points—top, bottom, and side—for red dots, lights, lasers, or grips. It's made from durable polymer engineered to handle the recoil and use you'll throw at a duty or hunting shotgun without adding unnecessary weight or complexity.
The PR-870 is built around the Remington 870's proven platform. The reinforced polymer construction keeps things tough while staying light, and the Picatinny rails follow the standard that works with virtually every modern optic and accessory ecosystem. Whether you're setting up for home defense, tactical training, or hunting, the modular rail design lets you configure your shotgun exactly how you need it without permanent modifications to your receiver.
Installation is straightforward—this is a drop-in forend replacement that doesn't require gunsmithing. If you're looking to add versatility to an 870 without breaking the bank or committing to permanent changes, this gives you the platform to do it.
| Brand | FAB Defense |
| Model | FXPR870 PR-870 |
| Firearm Compatibility | Remington 870 |
| Overall Length | 7.30 inches |
| Material | Reinforced Polymer |
| Color | Black |
| Rail Configuration | Three Picatinny rails (top, bottom, side) |
Yes, the PR-870 is designed specifically as a forend replacement for Remington 870 shotguns. It's a direct fit without modification to the receiver.
Any accessory or optic with standard Picatinny mounts will work—red dot sights, magnified optics, tactical lights, lasers, vertical grips, and rail-mounted bipods are all compatible.
No. The PR-870 is a forend replacement, not a permanent receiver mod. You can swap it out and return to the original forend if you choose.
The product includes the rail system itself; you may want to source any rails, mounts, or accessories separately based on your setup.
SKU: 115697131 • Width: 2.5in • Height: 2.2in • Depth: 7.3in • Weight: 0.55oz
Availability: In Stock
Current Stock: Out of stock
If you run a Remington 870 and want to modernize your shotgun with rail-mounted optics and accessories, the FAB Defense FXPR870 PR-870 Polymer Rail System is a straightforward way to add Picatinny real estate to your forend. This 7.30-inch reinforced polymer rail system replaces your factory forend and gives you three mounting points—top, bottom, and side—for red dots, lights, lasers, or grips. It's made from durable polymer engineered to handle the recoil and use you'll throw at a duty or hunting shotgun without adding unnecessary weight or complexity.
The PR-870 is built around the Remington 870's proven platform. The reinforced polymer construction keeps things tough while staying light, and the Picatinny rails follow the standard that works with virtually every modern optic and accessory ecosystem. Whether you're setting up for home defense, tactical training, or hunting, the modular rail design lets you configure your shotgun exactly how you need it without permanent modifications to your receiver.
Installation is straightforward—this is a drop-in forend replacement that doesn't require gunsmithing. If you're looking to add versatility to an 870 without breaking the bank or committing to permanent changes, this gives you the platform to do it.
| Brand | FAB Defense |
| Model | FXPR870 PR-870 |
| Firearm Compatibility | Remington 870 |
| Overall Length | 7.30 inches |
| Material | Reinforced Polymer |
| Color | Black |
| Rail Configuration | Three Picatinny rails (top, bottom, side) |
Yes, the PR-870 is designed specifically as a forend replacement for Remington 870 shotguns. It's a direct fit without modification to the receiver.
Any accessory or optic with standard Picatinny mounts will work—red dot sights, magnified optics, tactical lights, lasers, vertical grips, and rail-mounted bipods are all compatible.
No. The PR-870 is a forend replacement, not a permanent receiver mod. You can swap it out and return to the original forend if you choose.
The product includes the rail system itself; you may want to source any rails, mounts, or accessories separately based on your setup.
SKU: 115697131 • Width: 2.5in • Height: 2.2in • Depth: 7.3in • Weight: 0.55oz