Saricam Arms SS-4 M103 12ga 18.5" 5+1 Fixed Stock Semi-Auto Shotgun

Manufacturer: Saricam Arms

Action: Semi-Automatic

Operation: Auto-regulating dual short-stroke piston

Caliber: 12 Gauge

Chamber: 3"

Barrel Length: 18.5"

Receiver: 7075 aluminium

Finish: Black

Stock: Fixed standard

Choke: 3 pieces interchangeable choke (Full - I / Modified - III / Cylinder - IIIII)

Capacity: 5 1

A unique, short-stroke, dual-piston design developed for the M4 Tactical shotgun in 1998 for the U.S. Marine Corps. It was later adopted as the U.S. Joint Services combat shotgun—and remains so today.

The gas port is located just forward of the chamber, where the gases are hotter and cleaner. This results in less fouling and more reliable cycling.

Pistons push directly against the bolt, for fast operation and minimum vibration.

There are no connecting linkages or heavy action bars under the forend, which add weight.

Parts are 100% interchangeable with the Benelli M4.