Can you supply that link ? Pics of what you are trying to describe ?
What you have posted confuses ... ?

 

Look on Guns.com
Thompson Center Encore you will see it there

 

Thompson/center Arms Encore W/ Kendrick Barrel - For Sale :: Guns.com

This T/C has a Kendrick Texas Contender barrel. Overall condition is good showing some dings and scratches.

www.guns.com

 

I can't find any information about this buttstock, the medallion is a commemorative Yellowstone coin

Yeah, got it. Pics look good.
TC/Contender frame ( 1st gen. With engraved Puma)
Nice comemeratve stock.
Barrel is a relatively unknown to me. Only hearsay .Never saw one.
Gotta watch out for the extractor. If shot using 5.56 Nato. The higher pressure might have stuck some empties.
Tough to get out & the extractor blade bends. ( easy fix).
Good 20” barrels are close to 400 bucks now . So if it’s your thing. 650 ain’t gonna murder you when you can get another Bbl. and have two guns.

So what I've determined Fred Kendrick made rifle length barrels to achieve Contender carbines some time before TC started.
Guns.com has it listed as an Encore, not a Contender.
As my research has determined that G1 receivers are not compatible with G2 and Encore barrels, correct?

 

Yeah, got it. Pics look good.
TC/Contender frame ( 1st gen. With engraved Puma)
Nice comemeratve stock.
Barrel is a relatively unknown to me. Only hearsay .Never saw one.
Gotta watch out for the extractor. If shot using 5.56 Nato. The higher pressure might have stuck some empties.
Tough to get out & the extractor blade bends. ( easy fix).
Good 20” barrels are close to 400 bucks now . So if it’s your thing. 650 ain’t gonna murder you when you can get another Bbl. and have two guns.

 

My understanding is that G1 receiver pictured ( as a rifle ,in it’s parts & configuration) will accept some G2 Bbls.
I have read that most Bbls are compatible as long as they are TC/Contender . The plated “Armaloy” stainless looking barrels would pose a problem in “ fitting” the plated metal parts ( pin & hingepin hole)
Best to call the aftermarket suppliers of Barrels. SSK ind. Firearms ( LehighDefense) Bullberry, Bellm, Eabco, MGM, Etc.

 

My understanding is that G1 receiver pictured ( as a rifle ,in it’s parts & configuration) will accept some G2 Bbls.
I have read that most Bbls are compatible as long as they are TC/Contender . The plated “Armaloy” stainless looking barrels would pose a problem in “ fitting” the plated metal parts ( pin & hingepin hole)
Best to call the aftermarket suppliers of Barrels. SSK ind. Firearms ( LehighDefense) Belm Etc.

I'll find the link, however it states that they are Not compatible

 

😊
I was inspired by Kendrick's Commemorative buttstock