KoA R-Hop Installation Guide 

Thanks for taking the time to do this guide Sam. Very informative, and its great to see how its done step by step with the fine tuning. Fills in the gaps that other guides seem to miss or skip. Looking forward to trying this out

This is one of the better tutorials on youtube

Perfect tutorial, many thanks for taking the time to record such a concise tutorial :)

Another great video, thanks again Sam for sharing your knowledge

Hi Sam, great video, the 70D Sorbothane sheet, how thick is it and where can it be purchased from ?

more descriptive detail... but the lack of video ruins it in hindsight.. the segment of gluing the edges are vital to see and explain, such as stroke from the exterior edge, downwards along the outside so none of the glue gets smashed into the window when pushing the patch into place.... getting loctite in ur barrel is a game ender for most or average non tech savvy person or kid. Guys.. gluing the barrel is essential, but be aware if your like some people I know of, that attempted this with their only gun, not being able to replace anything and gummed the barrels up, one guy glued his bucking to his barrel, via patch by accident because he used Loctite Gel, which apparently acts different and stays tackier longer. Just my 2 sense from personal experiences. Great way on cutting the patch out and sanding. Carbon Fiber Arrows at Walmart are 0.99 and are 6mm perfect diameter, for those who don't have access to a 6mm rod.

Love the installation guide, very, very helpful for those of us beginning the R Hop journey. Just one question, I've seen others suggest removing the ridge from inside the bucking that locates in the groove on the outside of the barrel as well as the bucking mound, which you removed, and then rotating the bucking 90 degrees when installing so the bucking exposed to the patch is un-sanded, Have you not found this necessary?

Great video. I'm about to embark on the process, but my barrel does not have a square cut hop window. It is 6mm at the bottom but opens up to 7mm at the top meaning both of the sides have an angle to them (its a prometheus krytac 6.03). Is it better to use a 6mm long r-hop patch with square cut sides (as you do in the video) so is it not touching the sloped sides of the window but has wedge shaped gaps where the hop window edges rise towards the outer diameter of the barrel or use a 7mm r-hop patch that I shape to fit the hop window cut out with no gaps i.e. it has tapered ends to take it in from 7mm to 6mm to match the shape of the hop window? I'm not sure if the shaped r-hop will be hampered by the slopes and not get pushed into the barrel properly by the flat m-nub. if there's no real difference in performance, the square cut 6mm option would seem a simpler install than shaping the r-hop patch to fit the non-square hop window.

Great Video....gives a great insight into how to do an R-Hop and removes some of the black magic associated with the process. Was think of trying a modified hop for the first time and was going to try a flat hop as the first one....in your experience are flat Hops any better than the standard hop supplied in some AEG's and would you attempt this as a first modified hop.

Hi Sam! Really good video, thank you for uploading. Just question! Everything clear for me about r hop. Because is perfect guide from you! BUT! What about small nub In hop up chamber? You still put in chamber the hop up nub or just leave… Maybe is silly question but I’m fresh in Airsoft. That’s reason why ask… waiting your answer… thank you

This was quite nice. I enjoyed it. But the second part should also be included and can sometimes be tricky. Installing the little nub. I manage to screw up that,let's called "the easier part". Hey,I would like to ask...from which Sorbo pad did you make your nub? I would maybe like to try out one,or two. Thanks,and again,very nice an educational video!

I'm trying to figure out if i can install an rhop in an APS APM 50 shell ejecting sniper. It's got the hopup disabled, but do you think a TDC mod + an rhop mod will do the trick? i'd artificially tap the outer barrel and make my own hopup screw to apply downward pressure onto the hopup.

Very nice video KOD. Can you link me where I can purchase this RHOP in 3 pieces? and also it seems you have a 6.05 ID of edGI. is this the best ID that you can recommend? im planning to change my Innerbarrels but not sure if I need a tighter one or this 6.05 TIA.

May i missed the point. What material is the R-Hop rubber made of?

Thankyou. Interesting and clear video

what is the best brand of precision pipe for R-hop

I run a 554mm PDI barrel in my CO2 tapped KJW M700, what would the extra cost be like for an rhop on the PDI barrel?

hi. may i know which tubing is this? hunter sheikah?

Hello I have seen some people hold down the patch by wraping ptfe tape over the patch and then placing the rubber of it. Does this work or do i need to glue it down

very nie man , if i use silicon its be a sme efect ?

Where can i get offical rhop patches?

Can u please explain how a perfect R-hop is? :p you say it all the time when sanding... and i dont know how the edges are supposed to look, for it to be perfect!

Hi Sam whats your thoughts on sugru for the hop window?

are you using the original rhop kit or the Z-kit?

Where can you get those EdGi barrels in the UK?

where can i order that barrel?

why didn't you show the glue application on the barrel window?

Can you stop doing everything off camera?