shotgun magazine extension tube

made in the U.S.A 

        conforms with the 922r rule.

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

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 type III inside and out

this is a hard coat meets mils_specs

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



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