This Winchester manufactured first variation 7" long butt stock bolt has threads that measure 6 1/4" from end to end (non-threaded pointed tips not included) and is for the earliest model 290 semi-auto rimfire rifles with a serial number below 350,000. This part is in very good condition with light wear. (file photo)

Note: Winchester model 290 semi-auto rimfire rifles with the following serial numbers have been observed with this part:

No Prefix: N.S.N. & 167977

B Prefix: