Any one with experiance with flat-hops?

[blackjack21]

Just ordered a modify Flat-hop rubber and nub combo for a LCT AK hop up unit with a tight bore barrel. Anyone have any experience with these nubs/rubbers?

[lurkingknight]

lazy man's r-hop... basically you put the sleeve on like any other. The nub is a little taller to compensate for the fact there's less material where the mound normally is.

[K3vX]

What's the question exactly?

It shoots straight, yes.
I have one in my G36, but if I had the hardware required, I would r-hop it.

Edit:

Originally Posted by lurkingknight

lazy man's r-hop

Beat me to it.

[blackjack21]

Sorry the question I guess is what to expect, what to look out for. What kind of performance bump I should expect. (right now using a pommy rubber and a standard nub.)

I am a relative newb to arisoft, this will be my first do it your self project (had been using gun docs previously.)

R hop seems way to difficult for me as I do not have easy access to a range and pulling apart my gun multiple times to sand my rhop over and over seems a bit much for me ATM.

This is the combo I ordered. Thought that the fact the rubber does not need modification and is designed to go with the nub would work best.
http://www.airsoftparts.ca/store2/in...oducts_id=2466

[K3vX]

Nothing wrong with the flat-hop, don't let the "lazy" word discourage you.

Before changing the hop-up rubber, I would make sure you have no air leaks and a consistent FPS (which is consistent because of the lack of air leaks... I digress).

The performance bump cannot be measured, but there should be one. Just be sure that the new rubber sleeve provides a good seal, or mod it so it does. An air leak will kill your performances and leave you with poor accuracy.

If it's your first hop-up change, I would read a lot of guides on how to do it, because if you screw something, you gun will shoot like crap. That doesn't mean it's hard to do, but you should know what you're doing.

[lurkingknight]

air seal is everything, if you have an inconsistent seal before, you'll have incconsistent accuracy, with a new rubber, same deal. Piston o-ring, cylinderhead to cylinder seal, nozzle to cylinder seal, nozzle to hopup chamber/bucking seal. Any one of those leaking will affect accuracy.

[ThunderCactus]

I've heard mixed reviews
mostly good though
I've used two modify flat rubbers to convert barrels to R-hop. The flat nub is GREAT for use with R-hop, but the rubber I found was on the hard side. One was okay, the other I had to sand the mouth a bit because it was too difficult to push a BB past.

Honestly I would stick with a PDI-W or firefly though, they have more consistently awesome performance reviews

[Adamlxlx]

I have that modify setup in one of my aks. I like it. Its a bit more consistant.

[lurkingknight]

W hold is great as a standard bucking. If you're going to spend as much on a flat bucking or bridge/flat hop nub, might as well just r-hop lol... not that much more in cost, and better performance. To get the best results though, shave a soft rubber for better seal instead of a harder rubber.

Or better yet, take your favorite hop bucking, shave the inside and put the flat hob tensioner with that and save the cost of buying an overpriced sleeve.

[Stealth]

The nub in the Modify kit is a bit undersized laterally and unless you center it correct across the arm, you'll get curved shots.
The sleeve also isn't universally that good, for the reasons stated above.

An R-hop installation only requires you to remove and disassemble your barrel group once. Where did you hear that you had to take it apart multiple times?

Lastly, even an R-hop with a standard round nub will blow a flat-hop setup out of the water. And that's fact.

[lurkingknight]

when the barrel lies to you by letting a BB pass through fine with the rhop patch on... then hops to the moon when fully assembled at 0 hop setting. :P

[Stealth]

Originally Posted by lurkingknight

when the barrel lies to you by letting a BB pass through fine with the rhop patch on... then hops to the moon when fully assembled at 0 hop setting. :P

LOL wut? I've been able to underhop 0.20g. Check yo nub

Telling you man, this install method works.
AEG Accuracy, Hop-up and R-hop Install Tips - YouTube

[lurkingknight]

I've gone through your vids and maekii's and HS5s.. every one I've installed had to be pulled and inner radius sanded. Even my first 2 with the mnubs. With 0 setting it still hopped.

[Stealth]

Might be something to do with the natural "0" hop setting on platforms OTHER than AR15s...

Between the 3 of us (maekii, HS5, and me/us) we all use M4/M16 hop units.

[lurkingknight]

that's possible, I've done a p90, 2 g36s and a 416... tho the 416 also had to be inner sanded. But once you silicone oil the inner radius and use the installation tool with some 800 grit, it's polished extremely well. you have to let the sandpaper do the work.. takes time but you can take down the inner and retain function. The trick is if you are working on the inner side, you tack the patch down with glue to the installation tool so it's braced and you're free to wrap sandpaper around the rod and sand the inner.

The p90 and my g36 use mnubs, the other g36 uses a standard cylinder nub and the 416 is setup to use the prommy bridge nub. 2 madbull and 2 prommy EG barrels between the 4. They all work really well though the 416 needs a barrel lockdown kit, when you leave the bolt closed it throws off the hop, which I think is just the hop unit being pushed to the side when it's closed.