Will M9 bayonet fit Mossberg 590?
Will M9 bayonet fit Mossberg 590? The Bayonets on the Mossberg 590A1 The handle of the M9 comes in 1/4 inch shorter than the handle of the OKC3S. A 1-inch lock-washer, modified just a little bit, will fit behind the cap, and make up the difference. What bayonet goes on a Mossberg 590? Yes, you can. Any bayonet that will fit the M16/AR15 rifles will fit thw 590. I've got an M7 for mine. Is the M9 bayonet illegal? In the USA and international warfare. Bayonets are not illegal. How much is a real M9 bayonet? New (26) from $123.56...