When is enough ever enough? One bayonet begats another, and then probably another. The National Soldier Factory just west of the square in Gettysburg had this Ontario Knife Comany (OKC) 3S bayonet in their showcase... I must have asked them if I could see it too many times. Eventually, I made a trip into town early one morning just to buy it.

The OKC 3S bayonet was intended to fit on an M16 or M4 rifles where the distance from the muzzle to the bayonet lug isn't specific, because the muzzle brake/flash hider can vary in length. For the bayonet to fit properly on the Mossberg 590A1, I needed to put an additional O-ring under the magazine tube cap, just to offer an additional 1/8" of length. The O-ring on the mag tube cap is still required to stifle rattle, but she is secure.

My Mossberg shotgun has a bayonet lug just behind the magazine tube cap. So, of course, I had to find a bayonet for it!

I purchased this authentic issue M7 Vietnam era bayonet at a flea market hosted by The Rebel's Roost at The Outlet Shoppes at Gettysburg. Dude had $90.00 on it, but asked if he would take $80.00 and it was a done deal!

She installed and held firm without fail, but as I read online before purchasing, they weren't exactly made for each other, so there was a little loose rattling and I was worried that this movement would create wear and scratching.