Adamson 12Ga Syn 18 Mag Fed Pump Sg
The Adamson 12-gauge pump-action shotgun delivers serious home-defense capability in a compact, manageable package. Built with a synthetic stock and an 18-inch barrel, this mag-fed pump shotgun is engineered for close-quarters work where reliability and quick target acquisition matter most. Whether you're setting up a home-defense plan or building a versatile shotgun battery, the Adamson's straightforward pump action and tactical features make it a no-nonsense choice for shooters who want proven function over flash.
The aluminum receiver keeps weight down without compromising durability, while the fixed-cylinder choke and ghost-ring sights support fast, intuitive aiming in low-light scenarios. A Picatinny rail lets you mount lights, lasers, or other optics to suit your mission. The rubber butt plate absorbs recoil, and the pistol-grip stock gives you control and maneuverability in tight spaces—essential for home-defense work or tactical training.
This is a shotgun built for function. The 3-inch chamber handles both 2¾-inch and 3-inch loads, giving you flexibility in ammunition choice. With a 5+1 magazine capacity and supplied spare magazine, you get 11 rounds ready to go. The pump action is familiar to any shotgunner and built to run reliably with minimal fuss—no learning curve, just point, cycle, and shoot.
Key Features
- 12-gauge, 3-inch chamber for 2¾-inch and 3-inch ammunition
- 18-inch barrel with fixed-cylinder choke for home-defense patterns
- Pump action for manual control and reliable cycling
- Aluminum receiver balances weight and strength
- Ghost-ring sights for fast sight acquisition
- Picatinny rail for mounting lights or optics
- Synthetic stock and pistol grip for durability and control
- Rubber butt plate for recoil management
- 5+1 magazine capacity with included spare magazine
Specifications
| Gauge | 12 |
| Action | Pump (Slide) |
| Barrel Length | 18 inches |
| Chamber | 3 inches |
| Choke | Fixed Cylinder |
| Receiver Material | Aluminum |
| Stock Type | Pistol Grip, Synthetic |
| Sights | Ghost Ring |
| Picatinny Rail | Yes |
| Magazine Capacity | 5+1 |
| Butt Plate | Rubber |
| Magazines Included | 2 |
Frequently Asked Questions
What ammunition does the Adamson 12-gauge pump shotgun accept?
The 3-inch chamber accommodates both 2¾-inch and 3-inch shotgun loads, giving you flexibility to use standard or magnum ammunition depending on your needs.
Is the Adamson pump shotgun suitable for home defense?
Yes. The 18-inch barrel, fixed-cylinder choke, ghost-ring sights, and pistol-grip stock are all designed with close-quarters home-defense work in mind. The pump action is reliable and familiar to most shooters.
Can I mount a light or optic on this shotgun?
Yes. A Picatinny rail is integrated into the receiver, allowing you to attach lights, lasers, or other tactical accessories.
What comes with the Adamson pump shotgun?
The shotgun includes two magazines and holds 5+1 rounds total, giving you 11 rounds ready to shoot with the included spare magazine on hand.

