Spandau Arms S2

Spandau Arms · Shotgun · In Production · 2026

Also known as: Spandau S2

Overview

The Spandau Arms S2 is a budget-friendly inertia-driven semi-automatic shotgun and the first semi-auto in Spandau's line, which had previously focused on over/under guns. Built on the proven Benelli inertia operating system (a Benelli M2-pattern clone), the 20-gauge model has a 3-inch chamber, 28-inch vent-rib barrel, ~49.5-inch overall length and a 3+1 capacity. It accepts Benelli/Mobil-pattern choke tubes, features an enlarged loading gate for gloved hands, a fiber-optic front sight with a mid-rib bead, and a drilled-and-tapped receiver for optics.

Specifications

Weight (empty)	2807 g (99.0 oz)
Overall Length	1257 mm (49.49")
Barrel Length	711 mm (27.99")
Action Type	Inertia Operated
Firing Mechanism	Hammer Fired
Trigger Type	Single Stage
Magazine Capacity	3 rounds
Magazine Type	Tube
Effective Range	40 m (44 yd)
Barrel Rifling	None
Frame Material	Polymer
Barrel Material	Steel
Stock Material	Polymer
Finish	Camouflage

Calibers

20 Gauge · primary — also known as 20 ga, 20/70, 20/76

Features

Firing modes: Semi Automatic
Feed systems: Tubular Magazine
Safety mechanisms: Crossbolt Safety
Features: Inertia Driven Action, Vent Rib Barrel, Fiber Optic Front Sight, Mid Rib Bead, Enlarged Loading Gate, Benelli Mobil Chokes, Drilled And Tapped Receiver, Sling Attachment Points

Production

Production years: 2026-present

Origin

Country of origin: Turkey

Notes

Manufactured in Turkey and imported to the US (distributed via SDS Arms, Knoxville, TN). Offered in black and several hydro-dipped camo finishes (Realtree APX/MAX-7, Mossy Oak Obsession/Bottomland). 24-inch barrel synthetic option also offered. MSRP roughly $400-$620 depending on finish.

Background

Spandau borrowed Benelli's recoil-harvesting inertia action - the same self-loading principle found in guns costing four times as much - to deliver a near-$400 autoloader, betting that hunters care more about reliability than pedigree.