mod 12 plug removal
All you have to do is remove the 2 screws on the end of the mag tube. Then pull out the pin, mine has to be pulled out through the top due to the catch spring. Then pull off the cap, and the spring and the plug will slide out. Its not hard to do at all, definitly not something you have to take to the gunsmith. By the way I love my model 12, best shotgun Ive ever fired.
Have fun shooting
Zach