m1905 bayonet question

I just purchased an m1905 bayonet to go with my 1918 m1903 Springfield. it is an RIA manufactured in 1918 and has the 16" blade but it has plastic grips. it also has the m3 scabbard. I'm pretty sure that when these were being shortened for the m1 they replaced the wood grips with the plastic. My question is if this is true, why does this one have a full length blade? I know that the guy who owned it previously never messed with the grips so could this have been done during re-arsenaling?
-thanks

The US Navy rebuilt them full length.

As with this one.

mine doesn't have any navy markings on it. could it still be navy?

I don't think the navy marked the bayonets. Just the scabbards.

I believe if thy needed a rebuild, they would get the whole thing done. Refinish, new scales and usually the scabbard would be hashed so it wanted replacement. If not, then nothing happened...

the only marking on the scabbard is a very large flaming bomb with U.S marked in it

between the wars and in the leadup to WWII the older M1905s went thru rearsenal , and were fitted with new scales as required , yours would be one , the scabord was issued seperately but with the bayonet , its also WWII vintage , in the 1918 period the M1905 and M1910 scabords were in use , in spite of the photo's look , both blades have walnut scales ,

https://www.milsurps.com/images/impo...41da1e14-1.jpg

This one's mine. Walnut scales and parkerized correctly because of the date of manufacture. New scabbard because of need...I expect.

I only wish I could find a pair of the walnut scales th replce the ill fitting bakalite replacements on mine.