Description
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.