
Availability: In Stock
The SDS Imports MAC 1014 M4 12GA shotgun with extension delivers reliable capacity and straightforward operation for tactical use, home defense, and sport shooting. This semi-automatic 12-gauge platform pairs a compact, ergonomic M4-style receiver with an extended magazine tube that pushes your ammunition supply from the standard configuration up to 8+1 rounds ready to go. Whether you're running drills at the range, setting up a defensive shotgun, or testing yourself in competition, the extended capacity means fewer reloads and more trigger time between magazine changes.
The extension tube ships complete with the spring you'll need for installation—no guessing about parts compatibility or making trips back to the shop. The anodized black finish resists corrosion and pairs cleanly with any modern tactical setup. SDS Imports shotguns have earned respect among shooters who demand function over flash, and this extension is built to the same standard: honest engineering that works when it matters.
If you're already running a MAC-1014 series shotgun or a compatible variant, this is a straightforward way to increase your payload without overhauling the gun. The extension maintains the handling and balance you're used to while giving you that extra round of capacity that can make a real difference in the field or on the line.
| Gauge | 12GA |
| Platform | SDS Imports MAC 1014 M4 |
| Magazine Capacity (with extension) | 8+1 |
| Finish | Anodized Black |
| Contents | Extension Tube and Spring |
This extension is designed for the MAC-1014 series shotguns and compatible variants. Verify your specific model before ordering to ensure fit.
The kit includes the magazine extension tube and the spring needed for installation. You'll have everything required to complete the upgrade.
With the extension installed, your MAC 1014 will hold 8 rounds in the magazine plus 1 in the chamber for a total of 8+1 rounds ready to fire.
Yes. The extended capacity is well-suited to defensive applications, tactical training, and sport shooting where additional ammunition availability is valuable.

SKU: 126514057 • Width: 4.8in • Height: 1.3in • Depth: 18.3in • Weight: 0.37oz





Availability: In Stock
The SDS Imports MAC 1014 M4 12GA shotgun with extension delivers reliable capacity and straightforward operation for tactical use, home defense, and sport shooting. This semi-automatic 12-gauge platform pairs a compact, ergonomic M4-style receiver with an extended magazine tube that pushes your ammunition supply from the standard configuration up to 8+1 rounds ready to go. Whether you're running drills at the range, setting up a defensive shotgun, or testing yourself in competition, the extended capacity means fewer reloads and more trigger time between magazine changes.
The extension tube ships complete with the spring you'll need for installation—no guessing about parts compatibility or making trips back to the shop. The anodized black finish resists corrosion and pairs cleanly with any modern tactical setup. SDS Imports shotguns have earned respect among shooters who demand function over flash, and this extension is built to the same standard: honest engineering that works when it matters.
If you're already running a MAC-1014 series shotgun or a compatible variant, this is a straightforward way to increase your payload without overhauling the gun. The extension maintains the handling and balance you're used to while giving you that extra round of capacity that can make a real difference in the field or on the line.
| Gauge | 12GA |
| Platform | SDS Imports MAC 1014 M4 |
| Magazine Capacity (with extension) | 8+1 |
| Finish | Anodized Black |
| Contents | Extension Tube and Spring |
This extension is designed for the MAC-1014 series shotguns and compatible variants. Verify your specific model before ordering to ensure fit.
The kit includes the magazine extension tube and the spring needed for installation. You'll have everything required to complete the upgrade.
With the extension installed, your MAC 1014 will hold 8 rounds in the magazine plus 1 in the chamber for a total of 8+1 rounds ready to fire.
Yes. The extended capacity is well-suited to defensive applications, tactical training, and sport shooting where additional ammunition availability is valuable.
SKU: 126514057 • Width: 4.8in • Height: 1.3in • Depth: 18.3in • Weight: 0.37oz
