Brownells 75th Anniversary - A Shooting Heritage
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Professional Gunsmith Installation Recommended

The Tikka T3 and T3x has changed the firearm industry’s perception of a what a precision hunting rifle should be world-wide.  While the Tikka excels in almost every aspect a shooter could ask for in a rifle, one shortcoming hand loaders have struggled with since the rifle’s inception is the limited magazine length.

A logical magazine replacement would be the long action AICS magazines and clones.  While several bottom metal companies have attempted to make a bottom metal compatible with both these magazines and the T3/T3x, none have been able to create a solution that allows the use of longer case lengths… until now…

This bottom metal was 6 years in the making!  Through these years of trial and error, our design team has been able to create a kit that allows the shooter to utilize the full length available in these military grade magazines.

Standard COAL for long action AICS magazines is 3.60”
It is important to only use SAAMI length AICS style magazines with an external length of no more than 3.715”

It is important to remember that once a rifle is modified beyond the scope its original design, additional and unforeseen work may be necessary for reliable function.  Thus, installation, final fit and finish is best accomplished by a competent gunsmith.

Magazine Compatibility:

  • AICS 300 Win Mag – compatible with belted magnums based on the 300 Winchester Magnum
  • AICS 300 Win Mag – compatible with 30-06 and similar based cartridges with modification to the magazine’s feed lips
  • AICS 338 Lapua – compatible with WSM and Nosler based cartridges
  • Accurate Mag 30-06 – compatible with 30-06 and similar based cartridges with modification to the magazine’s feed lips
  • Accurate Mag 300 Win Mag - compatible with belted magnums based on the 300 Winchester Magnum
  • Accurate Mag 300 RUM and .375 H&H Mag – compatible with WSM, Nosler, and other 404 Jeffries based cartridges
  • Magpul PMag 5 AC L, Standard - compatible with 30-06 and similar based cartridges with modification to the magazine’s feed lips (outside must be trimmed to fit into the Tikka action)
  • Magpul PMag 5 AC L, Magnum - compatible with belted magnums based on the 300 Winchester Magnum with modification to the magazine’s feed lips (outside must be trimmed to fit into the Tikka action)

Specifications:

  • Mag Catch Material – Stainless Steel
  • Mag Catch Finish – Mill Finish
  • Bottom Metal Body – 6061-T6 Billet Aluminum
  • Bottom Metal Finish – Mil-Spec Hard Anodized
  • Bolt Stop Material – Stainless Steel

MOUNTAIN TACTICAL - T3/T3X AICS BOTTOM METAL LONG ACTION

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