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Has anyone here done the flat hop before? Please tell me something more about it.

I want to install an R hop in my M28 but there is no freaking way I wanna take apart my rifle about 20 times. I just dont wanna,lol.. So the next best option is either R hop my Sr25 cause the hopup is much easier to get to.. then when its perfect, take the barrel back out and put it in my M28? Would it be the same setting or would the different hopup and bucking make things different?

Also, since I just dont wanna fool with an R hop so much, would the flat hop just be the way to go?

I guess its safe to admit I am getting lazy in my old age,haha.. The R hop just seems like too much work! I dont wanna fiddle with it that much. I'm already getting 250ft or so with the stock bucking and excelent accuracy since I shimmed the hopup arm and did the Tdc.. Or should I not even bother since its already a pretty awesome rifle?
 

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I am going flat hop. According to theory, it give the bb more hop surface before it enters the barrel, resulting in more spin and you know, more range.

Modify has one and others will release theirs because it is simple and works.

Also, I have found that I get more consistency and range with a bore no smaller than a 6.03mm dia, tight bores like 6.01 dia. seems to choke the hop up. I will consider only a 6.01 on short barrels. 383mm or longer, I like using 6.03mm dia.

Forget R Hop. You need a quick release hop up unit before I will consider it.
 

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Discussion Starter · #3 ·
Right on.. Looks like were on the same page with it then.. on an M4 yeah, easier to get to etc... On my bolt action? Ehh, I'm good..lol.. All my screw holes would be stripped out by the time I have the r hop just right,haha.. So flat hop it is then.. I will start looking for whatever I may have to do this soon.
 

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How is the flat hop compared to the R hop?:O Is there like a guide to a flat hop, as I'm also interested in other options besides the R hop, as it does seem very tedious to get right:p
Different designs.

The flat hop is like your existing but it pushes more of the bucking downwards giving the bb more surface contact area for a prolong spin before leaving the barrel. Imagine putting a good spin on a .43 bb with a M170 or higher spring. Imagine the distance and accuracy! DMR won't come close against a springer with that. AEG's won't get close to you either.
 

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Discussion Starter · #7 ·
I figure there is a guide someplace, I googled it but I dont recall where I saw it at. Normally we have the info but on the flat hop, I'm not so sure we do. Airsoftforums.com usually has good guides.

As for the amount of screws, I have 3 body screws, then to unscrew the barrel, then take out the tdc screw, then the two screws that hold the hopup in place, then back it all out of the barrel.. and since I made inner barrel spacers its going to suck, just that much more,lol..
 

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Somewhere I read, the flat nub is basically the same exact thing as a regular hop up system, but instead, the bucking hop up bump and alignment bump are taken off via knife, sandpaper, etc. and then rotated. The bucking is anchored, and lastly the nub is basically this large, flat surface that pushes the bucking and giving it a "flat" surface of contact.

Is that right? Seems extremely easy to do and possible to get it perfectly on the first attempt. It also seems better for lighter bb, since applying a lot of hop up this way would be a lot harsher than R-hop.
 

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it is better then stock, but it fails in comparison to an R-hop, and while it is a pain to do an R-hop, the trick is to have some practice on an easier to disassemble rifle. also having a spare bucking to slide over and check with makes it insanely easier. once you remove the barrel, you put in the R-hop patch, put on the bucking, see if a bb just drops through. if not, sand some more off, repeat till a bb just slides on past with no pressure besides gravity.

*edit, I guess i should explain how to mod the bucking. first, flip it inside out, then cut the ridge off of the bottom, and the hop up bump. then cut the lips off. yes, you do destroy a perfectyl good bucking for this, but once you have it you have the means to "smoke test" an R-hop with out repeadtedly taking apart the rifle
 

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No videos, it's just the nature of the beast. Like Luluk described, you have to push the bucking into the barrel. This causes excessive wear on the bucking, and while it will last for a time, and work well, eventually, it will tear, and you'll need to replace it. There are other reasons, but that's the biggest issue in my book.

Check out Clandestine.com. They have the HS5 R-hop installed Prometheus barrels. However, they are all AEG cut, not sure how that'll work for whatever guns you guys have.

And you could always send the rifle or hop up assembly off to have a tech install the r-hop for you.
 

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The VFC ASW338LM uses AEG cut barrels in its VSR10 hop up unit. If I want to give it a try, I can easily do the set up and testing on a AEG, then move it over to the VFC sniper once I am happy with it.

No doubt bucking makers can easily mold the J-hop style patch as part of the bucking.

Modify released a separate flat nub instead of a molded bucking with an internal flat for a reason.
 

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thanks for the link

and the AW338 and VFC ASW338LM are two different animals.
whoops typo:doh:.. i meant the Asymetric warrior from ashbury, ASW338. I think i have a pic somewhere on the forum of it in pieces, when i had to install the zero trigger and upgrade parts.

I really like the silencer and flashhider. If i had some cash i'd use it on my rifle.
 
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