My Spencer carbine, looking for info

[mpdphil]

I just picked up my first Spencer. It was advertised as an 1865 and has a 6 groove 20 inch barrel. It is not a burnside contract and has both a stabler cut off as well as the Spencer swivel cutoff on the cartridge feed lever. The serial number is 8692. Is it possible this was a wartime carbine that was upgraded after the war?
Thanks all!
Phil

[Walksfire]

Very interesting grouping of parts. It is definitely a later looking M1865 model Spencer. I would be willing to guess that it is a 56-50 bullet version. Have you looked under the front forestock wood and confirmed the barrel matches the serial number on the receiver. I would have guessed that this was a 3 groove version, but anything is possible. First time I have seen that top piece Spencer cutoff. Not sure why you would want both the Stabler and a Spencer Cutoff on the same carbine. It is a puzzle.

[mpdphil]

I have checked under the handguard and the serial number does indeed match the receiver.

[Herbert]

has the upper breach block been cut for the Spencer cut off(a milled groove in breach block that supports cut off when it is being pot to single load)

[mpdphil]

The caliber is 56-50. The top of the breech block is indeed wider to accommodate the Spencer cut-off. I looked up the serial number on SRS, but most of the 4 digit SN's are rifles. Is it possible that this started out life as a rifle, or did Spencer actually produce M1865's post war? I was under the impression that all Spencer M1865 carbines were refurbished M1860 rifles and carbines. Thank you all!

[Herbert]

The carbine is a 1865 model,I can not explain the Spencer cut off being fitted(possible trials carbine)

[mpdphil]

Any guess as to the date of manufacture for this one? I'm guessing that Spencer started back at SN 1 for the M1865 carbines. Here are a couple pics showing the spring assisted extractor, 6 groove bore, and the large cutout for the Spencer cut off.