IER-Hop vs. R-Hop

[Debrief]

I was hoping to upgrade my HK417 with a IER-Hop, however the local gundoc cannot source the IER-Hop parts kit for several months, but can source an R-Hop. Can anyone comment if the performance improvement with the IER-Hop is worth waiting for, or if the the difference is negligible enough to install a regular R-Hop?

[Azathoth]

(I)ER hop vs R Hop. The barrel window is cut to extend the length of the patch. Done correctly is better than the R hop. It is a pain to cut the barrel window and if someone has the specialist tools IE The local guy with the CNC machine to cut the window on the Barrel relatively precisely and cleanly then.

The patch material can be the same between the (i)ER and R hop patches however the length is longer on the ER. Honestly, how often are you going to be playing in -20 weather? To quote HS5 from airsoftmechanics, the (I) is suppose to be better in theory at colder temperatures, but no one has written anything credible to show one way or the other the (I) material patch is better at lower temperatures. Just install the standard ER patch, it will be better than the R hop regardless of temperature tbat you are playing and for the handfull of times you are playing in the winter suffer a little knowing that the your ER hop could be 5% better under the freezing conditions you find yourself in.

[Stealth]

Your question has 2 parts - as Azathoth explained the IR hop is meant to be resilient and stable in cold temperatures than the R-hop. If you're playing in warmer climates it doesn't make a difference - installed correctly.

The ER hop vs standard R-hop allows a longer contact length at the expense of extensive modification of your hop-up unit. With this extended contact patch, less hop needs to be applied which theoretically = less FPS loss due to hop. It will also = longer dwell time of the BB = better round stabilization.

We have IER Z-kits in stock and ready to go.. I think. If not, as authorized HS5 Gold-level Dealers, we can get them in under 1.5 weeks time. PM me and we'll get you sorted out.

[ThunderCactus]

I wouldn't recommend an IR/ER hop over and IR/R hop
The whole principle is that the longer patch applies more hop over a longer area, which is critical for either very high fps, or extremely heavy rounds.

But the standard IR hop has been proven to work well at 600fps, and with weights up to .43 so there's really no reason to go the extra mile.

[Debrief]

Originally Posted by ThunderCactus

I wouldn't recommend an IR/ER hop over and IR/R hop
The whole principle is that the longer patch applies more hop over a longer area, which is critical for either very high fps, or extremely heavy rounds.

But the standard IR hop has been proven to work well at 600fps, and with weights up to .43 so there's really no reason to go the extra mile.

Yeah I'm just running 0.3g at 415 FPS (with 0.2g), seems like the IER is overkill then. Thanks for all the help!

[slowbird]

Just to drive the point in further, I used an R-Hop kit from Stealth on my m4 this past weekend with great results.

Outdoor game, in atleast -5 temps. A lot of the time me and the rifle were buried in snow.

It shoots 405fps on .20 and I was running .30's.

[Animalmother]

Is the rhop install easy? Is glue required? I dont have anywhere to test it out.

[lurkingknight]

Here on asc, there are no fewer than 3 other R-hop threads on how to install or not to install one.

Should that still not answer your question, the r-hop install manual on the forums of airsoftmechanics.com will answer any and all r-hop questions.

[ThunderCactus]

basically no, it's not easy
and all of it's performance is based on your installation skill

[Animalmother]

Do they sell pre R hopped barrels?
I would do it myself but I live in an apartment so I have nowhere to do it but the field I got to... and when I am at the field I want to play, anything but work on my gun at the field.

[slowbird]

Originally Posted by Animalmother

Do they sell pre R hopped barrels?

If you contact Stealth/Stephen at Airsoft Store Canada he can build something for you.

Contact him for more details.

[sab567]

Personnaly I have both (IR and R-hop) and I tried both in the same setup.

You can see a difference between the IR and R-hop at a cold winter condition (I mean less than -10 deg.)
With the R-hop (wich is tune perfecly and shoot straight with 0.30g at summer condition with 0 pressure apply on the M-nub) during cold winter I saw that the bbs have an hop-up effect.
For this reason I try the IR-hop and it look better (But I didn't have the time to try it under -5 deg.) but at this time, it's work like a charm.

Is you look at the HS5 website, the difference between the IR and R-hop is not to big, and if you think playing during winter don't take a chance and go with the IR-hop for some few more buck. And if you want to safe some time, go with the "pre tune" Z-kit, you'll have less job to do with sanding and better result in less time.

When you'll have to tune it, take your time, it's the key. Fit it (with sanding the extra material) in your barrel that you will be abble to push the bbs in the barrel without pressure. Go to a field you know or a private place that have a lot of place and shot, sand, shot, sand, shot, sand. You can fin a lot of "how to tune a R-hop" on the HS5 website or google. You'll be abble to do must part of the job without a shooting range, and just do the fine tuning at a field.

Edit: HK5 --> HS5 (My mistake sorry)

[lurkingknight]

HS5

his name is hunter seeker 5.

[Stealth]

[outtatime]

hey to help you guys out, these videos might clear up some things for you about choosing your hop, Increase any Airsoft Gun's Range and Accuracy: G-Hop Installation Guide (Lazy Man's R-Hop) - YouTube and My experience with R-Hop: I Like It, But I Like G-Hop More. - YouTube check them out, im currently moding one of my barrels for the g-hop everyone that does it right likes it better then R-hop of any sort. hope this helps