High Standard Flite King 12 ga Accessories?

[firemannw]

I have a High Standard Flite King in 12 ga 2 3/4" with an 18 1/2" barrel, that belonged to my father for many years. My question is will Remington 870 or Mossberg 500 accessories work on my high standard. The only thing I would like to add is a set of ghost ring sight and a mag extension. The shotgun has sentimental value and I would like to make it my truck gun.

 

[Dfariswheel]

No.
The High Standard was a different design unrelated to any other brand. Remington or Mossberg type accessories won't work.

Ghost ring sights are pretty universal, so as long as the receiver top curve is close, the rear should fit.

Standard type magazine extensions won't work.
The High Standard took a special type of magazine extension, and I think the only maker went out of business years ago.