ProMag Benelli M1 Super 90 12 Gauge +2 Magazine Extension

by ProMag
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ITEM# 15388132
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ITEM#: 15388132

The ProMag PM145 Benelli M1 Super 90 magazine extension adds two 3 inch magnum shells, or three 2 3/4 inch shells in capacity to 12-gauge M1 Super 90 shotguns. The magazine extension is machined from solid billet T6 aluminum alloy, then type III hard anodized. The spring is precision wound using Chrome-silicon wire for reliability. All steel components are black phosphate per mil-spec identical to original factory magazine extension. Magazine extension tube clamp included. No permanent modification required. All mounting hardware included.

  • Brand: ProMag
  • Model: Magazine Extension
  • Materials: Aluminum
  • Color: Black
  • Dimensions: 24 inches long x 1 inch wide x 1 inch deep
  • Weight: .25 lbs

Before purchasing this product, please familiarize yourself with the appropriate state and local regulations by contacting your local police dept., legal counsel and/or attorney general's office. You, as the buyer, not, are responsible to understand your local, state, and federal laws before placing an order.


Material Aluminum, Stainless Steel
Type Pistol, Rifle, Shotgun
Capacity 10 rounds
Color Black
Dimensions See Details
Warranty Lifetime Manufacturer
Model Number Magazine Extension
Country of Origin China

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** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.