shotgun magazine extension tube


fits flush with the end of barrel for 

IAC Hawk Defense , H&R Pardner Pump Protector, and Norinco with 18 1/2″ barrels.

+2 extenstion go from 5+1 to 7+1

        2 3/4″ shotgun shells from slugs to shot.

internal spring guide (dont need a plastic one)

keeps spring from deforming over time when the shotgun magazine is full 

machined from aircraft-grade aluminum

no plastic anywhere. 6061T sourced in the United States.

anodized to type 3 (military specs) inside and out

with outside coating to match the look of your gun.

precision threads 

guaranteed to clamp on to your existing tube without a barrel clamp.

uses your existing spring and follower

the internal spring guide makes your current spring and follower work better so you don’t need anything else.

looks like it was always part of the gun

its lighter weight but looks like it was a part of the original gun


magazine extension tubes for pump action shotguns



Put an extra two in your tube.  When it comes to home defense you can never be too prepared.  Having an extra 2 rounds in your shotgun’s magazine tube can make all the difference in the world.

Blunderbuss Technologies LLC
blunderbuss technologies actual:  1-404-433-1731