O rings for dry fire?

[Bench]

There's a new to me CZ P09 in my "dry fire range" as I get it worked up for USPSA. In one of the many Youtube videos I've been watching to get up to speed with this pistol one presenter mentioned that O rings were used as he was going to dry fire repeatedly throughout the video. That was the only mention. So, are o rings necessary for preserving this pistol since I usually do quite a bit of dry firing? If so, what's the placement...over the firing pin to prevent the hammer striking the firing pin?

[Rmach]

It saves/prolongs the firing pin retaining pin. Install the #83 O-ring in the hammer channel.

[Bench]

Thanks Rmach, I've noticed a bit of marring on the retaining pin already. Time to get some #83's!!

[Tok36]

[RoverSig]

Thanks for the OP asking the question and for the responses -- the picture says it all.  As a new CZ owner I have been wondering about this myself.  Looks like a good idea that won't cost much money at all.   Thanks.

[Bench]

Since we're kind of snowed in here today (9 degrees w/ -7 wind chill) I wasn't able to get out for some O rings but did cut up some higher durometer silicone sheet ~1.5mm thick in a rectangular shape to fit inside the hammer channel and cut out a "round" area to releave the firing pin protrusion/bump. Seems to be working just fine giving a cushioned hammer stop.

[Tok36]

Since we're kind of snowed in here today (9 degrees w/ -7 wind chill) I wasn't able to get out for some O rings but did cut up some higher durometer silicone sheet ~1.5mm thick in a rectangular shape to fit inside the hammer channel and cut out a "round" area to releave the firing pin protrusion/bump. Seems to be working just fine giving a cushioned hammer stop.

Sounds adequate to me, i have seen a few folks use disposable ear plugs in a pinch.

[Bench]

LOL, thanks...what ever works I guess!!

[igolfat8]

Thanks for sharing a great idea.

[punisher12b]

Since we're kind of snowed in here today (9 degrees w/ -7 wind chill) I wasn't able to get out for some O rings but did cut up some higher durometer silicone sheet ~1.5mm thick in a rectangular shape to fit inside the hammer channel and cut out a "round" area to releave the firing pin protrusion/bump. Seems to be working just fine giving a cushioned hammer stop.

Sounds adequate to me, i have seen a few folks use disposable ear plugs in a pinch.

i do this all the time.

[George16]

I bought my O-rings from this guy on eBay.

https://www.ebay.com/itm/FDA-SILICONE-O-RINGS-106-QTY-100-3-16-ID-X-3-8-OD-/200381150342

$6.23 shipped for a package of 100 and he ships fast.

[LeeM]

Thanks for the tip! I went to HD and picked up a pack of ten for less than $3 out the door. Least expensive add-on I've found.

[Rmach]

I picked mine up at HD too.  I wish there was a way to keep them in the channel a little bit better.  Manually cocking the hammer a few times causes the O-ring to fall out.

[Hammer Time]

I picked mine up at HD too.  I wish there was a way to keep them in the channel a little bit better.  Manually cocking the hammer a few times causes the O-ring to fall out.

I find that a section of foam ear plug tends to stay in better than o-rings for repeated dry firing.

[Rmach]

I picked mine up at HD too.  I wish there was a way to keep them in the channel a little bit better.  Manually cocking the hammer a few times causes the O-ring to fall out.

I find that a section of foam ear plug tends to stay in better than o-rings for repeated dry firing.

You are correct, thank you!. Just now, I used scissors to cut a ~1/8" thick piece from one of my foam earplugs, put it in the channel and manually cocked the hammer about 25 times with no plug falling out. Thanks again for the tip.