Benelli M2 with 10+ tube extension

[philkelly]

Hi ive just bought a 2nd hand but as new benelli M2 witha 10+ tube extension. In the case is a black rubber o ring but when ive looked through the drawings i cant seen to find where it goes and can seem to see one on the gun , Anyone any ideas

 

[Edinburgh Rifles]

It’s for keeping the blood flow up

 

[philkelly]

lol ... we will see tomorrow when I give it a test fire