The barrel, bottom of receiver, and the slide. All should match. If not, you have a gun that was built from different lots.
You will have to call Glock with the serial number.
Mid 80's or so.
1989
There is a large serial number database on Glocktalk.com. Some books published on Glocks are available that also contain data.
A Glock 19 is a pistol. The Glock 19 is their compact, 9mm, 15 round, pistol.
1989
No cause its too short for gun the glock 17bis a bigger size and thr glock 19 is the compact size.
The Glock 19 is the 9mm with the compact (midsized) frame.
You will have to call S&W with the serial number to find out.
HBHxxxx indicates April 2005 date of manufacture from this link: http://glocktalk.com/forums/showthread.php?t=412093#post4622212
Yes, a Glock 19 9mm magazine can be used on a Glock 23 since both firearms are chambered in 9mm.
No