There is a very simple reason why they list this next to the M4.
Save your self the grand,like a sewing machine,all be it a very big one.
400 shells and no problems,even got lazy after a buddies batchelor blast and went out a week later for sighting a red dot for slugs with no clean -just a little oil,What a graet gun!!
And with the Ammo possibilities with the ability to shoot 3 inch as well enables you to shoot some big sabot type slugs.
Yet bird shot cycles with ease.I have a bad back and shooting can be down right crippling,this is a dream,i thought about a slip on slyle "recoil"pad,I really dont think I need it,might do it but not an urgent matter.
Jon Bladefoot from