Benelli M2 Extension Tube in Waterfowling Posted January 21, 2010 How can I determine the proper length to maximize the extension tube on my M2 18.5" barrel length. Thanks 45 ACP,
Benelli M2 Extension Tube
in Waterfowling
Posted
How can I determine the proper length to maximize the extension tube on my M2 18.5" barrel length.
Thanks
45 ACP,