Improve control and expand accessory mounting on your pump shotgun with this railed forend pump and tactical grip compatible with the Mossberg 500A 12-gauge. Built for durability and ergonomics, this upgrade enhances handling while providing Picatinny/Weaver rail space for lights, lasers, or other accessories.
The forend is injection-molded from high-impact ABS polymer and reinforced with black anodized aircraft-grade aluminum side rails. Its ergonomic profile—proper width, rearward angle, and back swell—helps distribute recoil evenly into both hands for faster cycling, improved accuracy, and better control.
Designed to fit long action slide systems measuring 7-3/4 inches, this assembly includes integrated action bars, making it compatible with both older and current-production Mossberg platforms that do not use a removable metal slide tube or nut. No gunsmithing is required, and installation is straightforward.
Railed forend pump & tactical grip for Mossberg 500A (12 Gauge)
Integrated action bars included (fits old & new Mossberg 500 platforms)
High-impact ABS polymer construction
Black anodized aluminum rails for strength and accessory mounting
Accepts all standard Picatinny / Weaver (MIL-STD 1913) accessories
Ergonomic design improves recoil management and control
No gunsmithing required
Easy installation
Forend Length: 8 inches
Total Length: 14.5 inches
Weight: 13 oz
✔ Compatible with:
Mossberg 500A (12 Gauge)
Mossberg 500, 590
Maverick 88 (12 Gauge)
❌ Not compatible with:
3.5" receivers (Mossberg 535, 835)
Turkey models
Youth / Bantam models
20 Gauge or .410 shotguns

Products sold on TrinitySupply.com may be subject to federal, state, and local regulations. It is your responsibility to verify that the product you intend to purchase is legal for you to buy, own, possess, and use in your state of residence. By placing an order, you confirm that you have reviewed and comply with all applicable laws in your jurisdiction.