Gen 3 or Gen 4 G20 10mm?

REDLINE · December 25 2012 07:45:34 PM MST

Good Deal BlueLineFish. ${$default_cool_smiley}$

s0nspark · December 26 2012 09:22:53 AM MST

Quote from: sqlbullet on December 23 2012 08:39:11 PM MST
As far as I understand, the magazines are the only area of non-compatibility. And that is new mags in older guns I think. Everything else is still common. You can even swap in the older recoil system I am pretty sure.

I may be mistaken but I think you have the mag thing backwards. The older mags work in newer guns except if you swap the mag release to the right side...

I know on some of the Gen4s you have to have an adapter to use an RSA designed for Gen3s. Not sure about the Gen4 20 because I have yet to even have the desire to swap out the stock RSA.

One big thing I prefer on the Gen4 is the texture on the grip. That and the grip sans backstraps feels slightly better in my hand than the Gen3 SF - not quite as blocky to me.

sqlbullet · December 26 2012 09:58:59 AM MST

Thanks for clearing that up. I knew there was some area of concern with old mags and new guns or new mags in old guns or something, but I wasn't sure what it was.

mlk3454 · December 26 2012 12:51:57 PM MST

Excuse my ignorance but was is RSA?

s0nspark · December 26 2012 12:53:38 PM MST

Sorry, should have spelled that out...

RSA = Recoil Spring Assembly, what Glock calls the captive guide rod and spring part

mlk3454 · December 29 2012 12:00:32 PM MST

Thanks for the breakdown of RSA. Does the 3.5 connector and such "upgrades" work on the gen 4 guns as well?

I am hoping to get out to a few shops to see what people have and whats available. Unfortunately 10mm is scarce around here so I will most likely have to order what I want.

s0nspark · December 29 2012 08:06:36 PM MST

As far as I know the connector is compatible - not sure about other options.

franco4027 · January 04 2013 03:48:26 PM MST

I have a G30sf converted to 10mm. I did put a 21lb spring but see or feel no difference. The 45 and 10mm use the same spring on Gen3 guns
My conversion has been 100 percent reliable. I have a gen 4 27 and it has a different feel than the gen 3. I noticed that same thing with a G21 in Gen3 and 4
I use gen 3 mags in my gen 4 with no issues. The only thing is you wont be able to change mag release to left handed user side.

mlk3454 · January 28 2013 01:29:32 PM MST

It appears with the new gun laws in NY that distributors are not shipping items like they were and getting a 10mm new is practically impossible. I have found a gen 3 Glock 20 with 4 mags, 4 boxes of ammo, a cheap kydex holster, and the box for $650. Is that a decent deal? Thanks for the help!

sqlbullet · January 28 2013 08:06:33 PM MST

In todays climate that is a good deal. It may or may not be six months from now.

mlk3454 · January 29 2013 05:14:07 AM MST

I'm going to check the gun out this morning and if its in good condition I think I'm going to take it. It appears that after April in NY we can't buy any mags over 7 rounds so this is also playing into the decision. My hand is being forced a little from the actions of a few chest thumpers.

mlk3454 · January 29 2013 08:33:35 AM MST

The pistol was in great condition and barely looked like it was shot. It even had flock night sites granted not overly bright...the kicker is there is a guy that claimed it over the phone and is to see if tomorrow. I hope he doesn't want it but who knows with my luck. Worst case I still have a g20 on order from a month ago at another dealer...