Do I have an old sporter

I made a trade today for a Heritage arms Rough Rider .22lr cyl only that I had $90 in for this what I think is a sporter.
There are no markings other than the patented dates and .22lr only.
It looks like a Sporter 19 NRA since it HAD the rear peep sight but I'm not sure because the stock looks different on the for end. I'm going to sell or trade this at the gun show this weekend so I just want to know what it is and what I should ask for it.
Thanks in advance.
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I found a new marking. I think it says 17523. Is this a serial number?
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I tried like hell to get the bolt out and it fought good but I got it out and it has 2 firing pins but now it's fighting to go back in.http://img.tapatalk.com/d/14/08/04/egera7az.jpg

The trigger seemed to be hitting on the trigger guard not allowing the bolt to go in. I took the stock off and no problem getting the bolt in with the extra trigger travel

No one can give me anything on this one?

Better pics of it
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Originally Posted by futurerider103

No one can give me anything on this one?

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There are some replies to your post over at RimFireCentral - basically it's a 1919 NRA that has had the front of the stock cut off to 'Sporterize' it. It's a later production of the first version that was made from 1919 to 1922~1923 with serial numbers under 25000. It has the more open ejection port of the later production guns of the first version. The two dovetails are not original, the rear one looks like it is where the rear peep sight mounting hole would have been (the early 1922 Sporters did not have any dovetails either but this is definitely not a Sporter). The magazine is a more recent Triple-K after market. The sling swivels are newer replacements, the original front would be mounted to the barrel band.

It looks like it has a quality set of sights put on it, but I do not think they would be worth as much as an original rear peep & front sight set.