Remington 870 USMC Mark 1 (MK1) Bayonet Adapter
Remington 870 USMC Mark 1 (MK1) Bayonet Adapter is one of the interesting but very rare items. I tried to find one without any success. I know that they were available at online auctions but I can’t find one for a long time.

Remington 870 USMC MK1
There is also Remington 870 AF Bayonet Adapter which is very similar to the MK1 adapter:

Remington 870 AF
Have you seen such adapter on one of the auctions? Do you have any information about Remington 870 USMC Mk 1 Bayonet Adapter?
Nothing new on the Remington 870 USMC Mk 1 Bayonet Adapter. (you could hunt down an old one)
But if you want to have a bayonet, a new aftermarket version, will cost you; $17.95. https://www.amazon.com/Ultimate-Arms-Gear-Remington-Securing/dp/B00U856VWI/ref=as_li_ss_tl?ie=UTF8&linkCode=ll1&tag=rem8comblogab-20&linkId=7226728545b575f35dc48445383e9ea3
Where can I search for the old ones? As for the aftermarket versions, I like the one by S&J Hardware: http://sjhardware.com
I have 2 mk1 bayonet adapters.
Email me at southernbro@operatorchan.org if anyone is interested in buying.
Why you need a bayonet on a shotgun?
Most people have bayonet on their shotguns just for fun :)
Fun plus its really cool and ifin one day you really do need it you’ll have it?
You need more than just the bayonet adapter? You also need a dimpled magazine extension for the bayonet to slide onto?
Yes, you need extension from Remington or S&J Hardware to be able to install bayonet.
I have the S&J Hardware bayonet and I have to say I am disappointed with the quality of the machining; the bayonet barely fits onto the end of the magazine tube extension, and the tolerances are such that the ring on the bayonet handle rattles noticeably. I’ve had to stick a rubber washer onto the end of the extension to stop this.
As for usefulness, I have fixed my bayonet a number of times while out bear hunting in dense bush here in British Columbia. I had to spend a half day helping a friend look for a black bear which he wounded last month, and I felt a lot safer for having it for that kind of unnerving work….I realize I am still at a major disadvantage to a bear’s fighting prowess, but it’s certainly better than using my fingernails!
I have a old one for sale brand new in the box with the spring. Asking price is $500 buyer to pay S&H.
Too expensive for me…
Is this still available? Pics?
Still have the MK1 870 bayonet lug adapter?
It’s worth it, I’ll take it.
Yikes! $500…is the shotgun w/ammo excluded?
I wonder if a good machinist could make one, or a few, and sell them? I wound think there would be a market of some sort with 870 fans, and reanactors making it up.