Carlson's Magazine Extension Assembly for Benelli M4 12 ga 5" 7rd
$64.49
Carlson’s 5″ magazine extension for Benelli M4 12 ga increases capacity to 7 rounds. Solid steel construction for tactical and home defense use.
Out of stock
Carlson's Shotgun Magazine Extensions For Home Defense Tactical and Law Enforcement Use Add firepower to your favorite shotgun. These magazine extensions are constructed of blued solid steel and come with spring base clamp with swivel stud (included) to work with quick detachable swivel (not included) and a high visibility follower (some extensions require factory follower and will not come with one). The threaded tube replaces you magazine cap and gives you the ability to add extra rounds to you magazine. Easy to follow instructions are included. The magazine extension tube is great for home protection competition shooting and law enforcement.
| Weight | 0.419 lbs |
|---|---|
| Dimensions | 11.700 × 4.550 × 2.350 in |
| Manufacturer | Carlson’S Choke Tubes LLC |
| Finish | blued |
| Material | blued solid steel |
| Compatible With | Benelli M4 |
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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