American Tactical Alpha Max .410 Bore Semi-Auto Shotgun, 18.5″ Barrel

Product Description

The American Tactical Alpha Max is a semi-auto .410 bore shotgun with an 18.5″ barrel. It is built on an AR-style layout, so it feeds from a polymer AR style magazine and runs a 5+1 round capacity. The chamber takes 2.5″ shells, and the barrel is fitted with a Cylinder choke.

The lower is a steel reinforced polymer part with a beveled magwell to help guide the magazine in. The firing system uses an internal hammer, and an adjustable gas system lets you tune how the action cycles. The barrel is threaded, so you can mount a compatible muzzle device.

Stock, sights, and rail

The stock is a 6 position ATI-SR1 with a pistol grip, so length of pull can be set to fit different shooters. Flip-up sights are front and rear, and an integral Picatinny optic mount with 0 MOA sits on top. The rail is M-LOK/Picatinny, which gives you room for accessories. The finish is black.

This shotgun suits buyers who like the AR-style manual of arms and want it in .410 bore. It makes sense for home defense, casual range work, and anyone building out a setup. Good pairings include a red dot or other optic for the Picatinny mount, a sling, a light or grip on the M-LOK/Picatinny rail, extra AR-style magazines, and 2.5″ .410 shells.

American Tactical Alpha Max .410 Bore Semi-Auto Shotgun, 18.5" Barrel Specifications

What’s in the Box

1 Magazine (per the manufacturer’s listing).

Fits and Pairs With

• Federal Personal Defense .410 Bore 2.5" 0 gr Buckshot Ammo, 20 Rounds
• Sellier & Bellot Super Speed, 410 Bore, 3" Chamber, 25 Round Box
• Fiocchi Ammunition High Velocity, Field Dynamics, 410 Bore, 3", 25 Round Box, LD #9
• Fiocchi Ammunition High Velocity, Field Dynamics, 410 Bore, 3", 25 Round Box, LD #8

Ordering from Western Sport

Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.

Frequently Asked Questions

Q: How many rounds does the American Tactical Alpha Max hold?

A: 5+1 rounds. That is five in the magazine and one in the chamber. It uses a polymer AR style magazine.

Q: What shell length does the Alpha Max chamber?

A: 2.5 inches. The chamber is sized for 2.5" .410 bore shells.

Q: Is the Alpha Max barrel threaded?

A: Yes. The 18.5" barrel is threaded and has a Cylinder choke.

Q: Does the Alpha Max have sights or an optic mount?

A: Yes. It has flip-up front and rear sights and an integral Picatinny optic mount with 0 MOA. It also has an M-LOK/Picatinny rail for accessories.

Q: Is the Alpha Max a semi-auto shotgun?

A: Yes. It is a semi-auto .410 bore with an adjustable gas system and an internal hammer firing system.

Warranty and Manufacturer

Covered by the American Tactical factory warranty; warranty terms come from American Tactical.

Additional information