12 Gauge Browning Auto-5/BPS Extension Nut


This product adapts the MXT extension tube kit to your shotgun.

Visit this page for information to ensure you order a complete kit assembly.

SKU: NUT-BP-12-00 Categories: ,


The MXT extension nut allows for installation of a Nordic Components MXT 12ga shotgun extension tube kit. The nut replaces the factory magazine cap, and is required for installation of the extension tube kit.

The BP-model nut is compatible with the following 12 gauge shotguns:

  • Browning BPS (see note below)
  • Browning Auto-5 (recoil operated version, not the current-production A5)

Certain models of the BPS, particularly older-production examples, will have a rolled lip at the end of the magazine tube. This need to either be removed completely or driven straight to allow proper function.

For the new production inertia-operated Browning A5, the NA5 nut is required.

Any magazine dimples or spring retaining devices will need to be smoothed or removed to allow proper function.

Note: This nut will also be compatible with other shotguns utilizing the same factory magazine thread pattern, but may require modification/fabrication for proper installation. Nordic Components does not have specific information regarding compatibility beyond the models listed in this description.

Additional information

Weight 0.18 lbs
Dimensions 9 × 5 × 2 in


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