I just was given a model 1899 # 282836 from my mother.  I don't know a whole lot about this gun other than it came from my grandpa.  I know that it is not original, but was wondering what i would have to do to get it that way?  I was also wondering what i should insure if for(i will never sell it)?  I think i need the peep portion of the redfield sight. I hope my pictures post. Thank you in advance.
Jason

Welcome, Jason

I don't think I have ever seen a recoil pad fitted like that before, but maybe if (big IF) the stock has not been shortened, a new butt plate would screw right in place.

Finding an aperture for your Redfield receiver sight should not be a problem.  Most apertures for Redfield, Lyman & Marble, and maybe other makers, are interchangeable.  This should be a less than $10 deal at any gun show. Make sure that the bolt will operate with the replacement aperture in place.  Some apertures have large diameter sight discs that will contact the extractor when the bolt is opened.

Was your Grandpa a woods hunter?  He may have removed the aperture to let in more light.

Some receiver sights for the Krag required the receiver to be drilled & tapped to mount the sight.  Other receiver sights just fastened into the place for the magazine cutoff.  If the receiver has been drilled, the rifle is not technically restorable.  If the receiver sight is fastened via the magazine cutoff, you need to replace the magazine cutoff as a part of the restoration.

I will let someone else tell you about the missing rear sight and the hand guard and 1899 carbines in general.  Someone will advise you to buy Joe Poyer's book, which you should do.  It's the best $20 you can spend on your Krag.

The screw holes for the original rear sight appear to be on the barrel, so it is just a matter of $$ and screwing the replacement sight in place.

Unless the stock has been cut to add the recoil pad or the Redfield sight, and unless the receiver has been drilled & tapped to add the Redfield sight, I think your Krag can be restored. 

But if you did a restoration, it would sort of no longer be your Grandpa's Krag.  It would just be another restored 1899 carbine.

the model 1896 carbine site is not the one you would need as the handguard you have is for another site either the 1901 or 1902 as the hand guard does not have a hump on it.

Jason:  Top Dean is partially correct.  Your 1899 Carbine does not have the Carbine Hand-guard for the 1896 sight.  You appear to have a Rifle Hand-guard for the 1896 sight.  I think the original sight for a Carbine in the #282xxx range was the 1898 Carbine sight with the 1898 Hand-guard (which was identical for rifles and carbines).  You can view photos of the various Krag sights and hand-guards by  'clicking' on KCA Website at the top of the forum page.  This will take you to a Main Page and you then select the Tab 'Photos'.

Yes that is where it should be at go to this site ssfirearms.com and thay have differnt sites and hand guards. what I would do if I were you and want to keep the gun like your Grandfater had it I would order the handguard without the site cutout and take your screws out and put them away for a later time and just use the non site grove handguard. will make for a very nice looking gun and help stop burning your fingers on the hot barrel. Hope this will help you out and they have all of the different sites for your rifle.