thats a good point about the pump handle since i didnt even think about that.
but the real concern of mine is the way the adapter is about 1.5 to 2 inches of smooth bore until it goes to the rifled portion. do you think that it may have a significant negative effects to the rifling of the fsr or that it may cause some damage to the fsr skirts when it transitions between the two?
I bought the hammerhead bangstixx fsr rifled barrel with a spyder fin for the hammer 7 and it is too big to fit into the pump handle. I had to trim down the back half, internal portion of the pump handle with a dremel to make it work.
From what I understand, you don't need or want to use a rifled barrel with FSRs as they have the fins that cause the round to spin in flight. From what I've been told rifling in the barrel can actually counteract, or disturb the spin the fins impart on the fsr.
And I love how people who don't shoot the Hammer 7 assume the barrel is NOT threaded when in fact it is threaded with typical Spyder threads.