The Firing Line Forums - View Single Post - What is the difference beteen Gen 4 Glock 29 and 29SF?

**JohnKSa** · August 16, 2017, 11:44 PM

The "subcompact" Glocks (26, 27, 29, 30, 33, 39) have always used the compound recoil spring system employed in the Gen 4 guns. So that didn't change in the Gen 4 versions of those guns.

The NY1 spring should work in the SF and Gen4 guns, but you should be aware that there are some small differences in the Gen 4 trigger mechanism which may result in a heavier/different trigger pull than you might have come to expect from the NY1 in previous generation Glocks. If you're going to use the NY1 with the minus connector combo, just keep in mind that it might not be exactly what you would feel with a Gen 3 gun.

I don't know if/how the SF trigger mechanism differs from the Gen 3/Gen 4 guns in terms of feel/pull weight.

August 16, 2017, 11:44 PM	#6
JohnKSa Staff Join Date: February 12, 2001 Location: DFW Area Posts: 25,563	The "subcompact" Glocks (26, 27, 29, 30, 33, 39) have always used the compound recoil spring system employed in the Gen 4 guns. So that didn't change in the Gen 4 versions of those guns. The NY1 spring should work in the SF and Gen4 guns, but you should be aware that there are some small differences in the Gen 4 trigger mechanism which may result in a heavier/different trigger pull than you might have come to expect from the NY1 in previous generation Glocks. If you're going to use the NY1 with the minus connector combo, just keep in mind that it might not be exactly what you would feel with a Gen 3 gun. I don't know if/how the SF trigger mechanism differs from the Gen 3/Gen 4 guns in terms of feel/pull weight. __________________ Do you know about the TEXAS State Rifle Association?