This Mossberg 18.5" security Breacher barrel features a bead sight, cylinder bore, and blued finish. It is compatible with 12 Gauge Mossberg 500 and Maverick 88 6-shot models. Note: Not directly compatible with 500 Cruiser or 500 Chainsaw.
Specifications:

Caliber or Gauge	12 Gauge
Length	18.5"
Model	Security
Twist
Sights	Front Bead
Bore Type	Smooth
Finish	Blued
Type	Security
Chokes Included	Cylinder Bore
Choke Configuration	Invector
Barrel Type	Security
Ammo Type
Barrel Features	Breacher