SDS Imports MAC-2 Tactical Shotgun Magazine Tube Extension +4/rd
$40.22
Boost your MAC-2 shotgun’s firepower with this +4 round tactical magazine extension from SDS Arms. Fits MAC-2 series shotguns and compatible variants.
4 in stock
MAC-2 magazine extension tube. Increases capacity to 7rds. Fits Military Armament Corporation MAC-2 series shotguns and compatiable variants. Includes tube and spring utilizes existing cap on MAC-2 Shotguns. Anodized black finish.
| Weight | 0.235 lbs |
|---|---|
| Dimensions | 20.000 × 5.000 × 1.000 in |
| Manufacturer | SDS Arms |
| Finish | Anodized black |
| Compatible With | Military Armament Corporation MAC-2 series shotguns |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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