I couldn't find my SN anywhere and it has the metal trigger guard so I'm not sure how old it is but I plan on sending it to Mac 1 for the works.
Nice! I like the old style stock.Have 4 Benjamin 342s that are stamped Racine (they shoot great!) and the serial numbers are post '85 according to the Crosman, Benjamin Product Dates list. The 1st var. is listed with '68-'86 dates of manufacture and the 2nd var. dates are from '86-'91. The 1st var. 392 dates are listed as '91-'93. Second var. '93-'96 and 3rd var. '97 to present.