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Customer Reviews
Helpful Negative Review
Pros - Price! Factory barrel cost $750 more! Cons - Fit. The M4 barrel has an alignment tab. The alignment on the Black River MFG is about .042 thicker than benelli m4 barrel. Almost appears to be missing a machining step. I will attempt to in...
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Most Recent Reviews
Could be an iffy purchase by tasdevl, November 13, 2025
This barrel caused my M4's bolt to stick in the rear position every time, no amount of lube or working the action would fix it. Had to hit the charging handle to make the bolt go forward. Not so good.
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Product Info for Black River Manufacturing Ported Benelli M4 12 Gauge Shotgun Barrel

Upgrade your Benelli with Black River Manufacturing M4 ported barrel. When the cartridge is fired, gases push the shot down the barrel and as it passes each port some gas is vented out to counteract muzzle rise and reduce felt recoil. Black River Manufacturing barrels are drilled from 4140 steel instead of 4130 which has nickel in it which makes it softer. 4130 is used because it can be extruded to make barrels to cut down on costs leaving you with a low quality barrel. Theirs are drilled from 4140 to ensure the highest quality possible. All of Black River Manufacturing barrels come with their extended ported choke which is threaded in Benelli Mobil thread pattern.image

Specifications for Black River Manufacturing Ported Benelli M4 12 Gauge Shotgun Barrel:

Manufacturer: Black River Manufacturing
Finish: Chrome Linded
Fabric/Material: 4140 Steel
Barrel Length: 18.5 in
Shell Length: 2 3/4 in
Gauge: 12
Gun Make: Benelli
Gun Model: Benelli M4
Condition: New
Gun Type: Shotgun

Package Contents:

  • Black River Manufacturing Ported Benelli M4 12 Gauge Shotgun Barrel
  • Ported extended choke

Black River Manufacturing Ported Benelli M4 12 Gauge Shotgun Barrel Orderable Models

List of Orderable Models

  • Black River Manufacturing Ported Benelli M4 12 Gauge Shotgun Barrel, 18.5 in, Chrome Linded, Gray, BRBMPBGR , MPN: BRBMPBGR , UPC: 850039520372 , Code: 4ZK-BSG-B2B4PB-BRBMPBGR
  • Black River Manufacturing Ported Benelli M4 12 Gauge Shotgun Barrel, 18.5 in, Chrome Linded, FDE, BRBMPBFDE , MPN: BRBMPBFDE , UPC: 850039520389 , Code: 4ZK-BSG-B2B4PB-BRBMPBFDE
  • Black River Manufacturing Ported Benelli M4 12 Gauge Shotgun Barrel, 18.5 in, Chrome Linded, OD Green, BRBMPBOD , MPN: BRBMPBOD , UPC: 850039520396 , Code: 4ZK-BSG-B2B4PB-BRBMPBOD
  • Black River Manufacturing Ported Benelli M4 12 Gauge Shotgun Barrel, 18.5 in, Chrome Linded, Black, BRBMPBBK , MPN: BRBMPBBK , UPC: 850039520365 , Code: 4ZK-BSG-B2B4PB-BRBMPBBK

Black River Manufacturing Ported Benelli M4 12 Gauge Shotgun Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Black River Manufacturing Benelli M4 Ported Barrel, 18.5in, Black, Small, BRBMPBBK , MPN: BRBMPBBK-EDEMO , Code: 4ZK-BSG-B2B4PB-BRBMPBBK-EDEMO-RE-D
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