[acerman]

Anyone have any first hand experience between the "ported" 20C and the "unported" 20? Any thoughts good or bad.I'm trying to decide which one to get.Thanks.:confused:

[10-Ring]

I have only used the 21c. In 45acp, the porting isn't necessary since the round doesn't build up enough pressure to utilize the ports. I also noticed that compared to a non-ported model (21 in my case), the gun shot a little low. 10mm might be a diff't story. The round should build up enough pressure to feel a difference....if you can try to shoot one :)

[CZ-75]

I have the 20C, and I can't really say that I found enough of a difference to warrant buying the ported version compared to the 20 after shooting one.

Only thing I'll say is that a new barrel w/o ports is easier to accomplish than getting ports cut into the slide & barrel later, should you change your mind.

[Kevlarman]

Also consider that in a defensive situation, ports can be a detriment. Theyre loud, bright, and can throw hot debris into your face.

[Mr. Chitlin]

I can not speak of the 20/20C, but I have a G22 and G22C. The C model does seem to have a little less recoil, but the blast is more noticable. Also, the 22C chrono's about 100 fps slower than the 22 with identical loads. On some loads, my 22C actually chrono's about the same as my G27.

See the results HERE (http://www.bobshuntingpage.com/chrono)

Click on the 40 S&W button.

[Sean Smith]

I had the ported version. Skip the ports... they just don't make enough difference to matter IMHO.

[MLC]

Ammolab muzzle flash testing (http://www.ammolab.com/muzzle_flash.htm)
I find the recoil to be quite manageable on my Glock 20.
More brisk, yet very controllable, than my USP Tac 45 but less overall roll in the hand.
What other calibers do you shoot on a regular basis?
The flash from the porting might be brighter and hotter than the flash from a standard muzzle because it is allowing hotter, higher presure gas to escape. In heavy 10mm loads with slower powders this would be come uncomfortably noticable.
Shooting my 10mm at dusk with ProLoad 180 grain loads was an eye opener. It looked like a 6-8" long plume of flame about the size of a softball. It got the attention of the range owners immediately.