MXT Extension Nut for Winchester/FN Autos and Browning Gold/Silver


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-SX-12-00 Category: Brand:


MXT extension tube nut for certain Winchester, FN, and Browning autos (see list below).  This nut will replace your factory magazine cap and allow installation of an MXT shotgun extension tube.


  • Winchester SX2, SX3, and SX4
  • FN SLP and SLP Mk. 1
  • Browning Gold and Silver

NOTE: Due to mag catch issues, we do not recommend installing an extension longer than a +4 on the Browning Gold.

Additional information

Weight 0.105 lbs
Dimensions 9 x 5 x 2 in


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