????....."Glock introduced its first compact versions of the large-frame guns in 1997. The Glock 29 and the Glock 30 were the G20 and G21 *chopped and channeled* at the muzzle and butt.".....MASSAD AYOOB.....FROM CONCEALED-CARRY HANDGUNS MAGAZINE SEPTEMBER 11, 2013.
My first G30 (would be a Gen 1) was purchased on 09/17/2005.