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.
HBHxxxx indicates April 2005 date of manufacture from this link: http://glocktalk.com/forums/showthread.php?t=412093#post4622212
You will have to call S&W with the serial number to find out.
Yes, a Glock 19 9mm magazine can be used on a Glock 23 since both firearms are chambered in 9mm.
Yes