I bought my first one for $49.99 out of the SIR catalogue in 1979, a 1911 made model 96 full length M96.
I turned down a nice M38 at Lever Arms in 1980 because I thought the threaded end had been used as a grenade launcher and perhaps bulged the bore. How was I to know what they were threaded for and Lever didn't tell me either. Bought 200 rounds of milsup ammo though and still have some.
I didn't know how to read the stock disc either. It was hard to find that stuff out pre-Internet, though I finally found a milsurp magazine from the US that explained it to me.
I subsequently bought an M38 at a gun show and was disappointed and sold it. Slobbered over sporterized milsurps for years but never bought one.
Finally my 'smith built me a "poor man;s custom rifle" out of a Spanish Mauser '95 action and a Tradex 6.5x55 barrel and a donor stock he had. Turned out disappointing my receiver's scope mounting holes are out of line so I could never correclty sight it in and though I did shoot it, after every shot the bolt almost needs to be opened with mallet.
Gave up on it and accepted the gift of a commercial 1955 Husqvarna 7x57 from a buddy.
Still have my 1911 though. Sweet shooter. My daughter was punching holes at 100 m with it when she was 12!
Her son's 11 now. I should take him shooting when he's 12.
If he likes it you should take him now