Magazine extensio 7-Round for Remington 12ga. 

The ATI magazine extension increases the capacity of your shotgun to 7 Rounds. 

Made of virtually indestructible DuPont Extreme Temperature Glass Reinforced Polymer injection molding over a steel connecting nut, the ATI mag extension will not rust or dent. 

The minimum barrel length for the 7 Shot extension is 18.5".

Includes a new spring. 

No gunsmithing required: Easy Installation, simply replaces your magazine cap nut.

Fits 12ga Remington 870, 1100, 11-87 and compatible models.

Produced by Advanced Technology, Inc.

Data sheet


All 12 ga Remington 870, 1100, 11-87 and compatible models

Includes a new spring

Rustproof and dentproof

No gunsmithing required.


12 gauge

Total lenght (closed):

153 mm / 6 inches
Need a 18 1/2" (47 cm) minimum barrel lenght.

Extension capacity:

Add 2 shells to magazine

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ATI Remington 870 7 Shot Magazine Tube Extension w/Black Finish

  • Product Code: 0010
  • Availability: 1
  • 60.00€

Tags: shotgun accessories