ADAPTER

2 reviews for ADAPTER

1. 

   Rated 5 out of 5

   Tim Durkin – November 6, 2019

   1/2 x 28 inside threads.. mystery on the outside threads

2. 

   Rated 4 out of 5

   PPGW – January 1, 2020

   The inner threads are 1/2-28. The exterior threads are 3/4-16. I imagine they are designed to fit an oil filter for some back woods suppressor rig or something.