Firefly Hop Up Rubber
 

Hey there,

So after reading a lot of buzz around firefly hop up rubbers, im considering purchasing one for my G&G M14 DMR setup. However, I'm not entirely convinced that it's worth the price tag. I've used hop up rubbers from systema, guarder, modify, and prometheus, but I keep going back to the stock G&G green because it performs so damn well. Will the firefly really be worth it?

The Fireflies have a double nub bucking, which none of those other mentioned hop up rubbers have.

The only other hop up rubber I can recommend over the Firefly hop up rubber, is the PDI W-Hold. They're a bit more durable, and they perform a bit better... and best of all, they're cheaper. I've been trying to get my hands on more, but they've been sold out at all of my distributors.

It makes my sniper rifle a laser rifle. And I with the one in my M4, I was able to range a few other sniper rifles.
Absolutely definitely worth the price.

I didn't believe it till I seen the difference it made in my gun. Took me a few hundred bbs to break it in then all of a sudden like he said... laser

Yeah, the Firefly isn't a bad hop up rubber. In fact, I have it installed in quite a few of my pistols, bolt action, and AEG's and I think they're absolutely fantastic. They're very very accurate and very durable. I like the PDI ones more, only because they yield a slightly higher FPS along with the dual nub feature, plus the nitrile construction makes it more resistant to chemicals found in some oils and greases. They're still fairly new, so there's no long term results yet, but I'm liking what I see, especially at that price.

Hmm, I'm very interested in the PDI rubber now... Please let me know when you get some in, I would love to try it out.

As for the firefly rubber, I've heard of quite a few problems with air seal as well as durability. Can someone testify against this?

Also, what nub would you suggest to go with the rubber? SCS, H, or standard?

I have a feeling that this conversation isn't gonna end well for my wallet :P

I personally haven't had any durability issues with the AEG version of the Firefly hop up rubber, and the air seal seems "good"... it's on par with Marui. It offers no noticeable improvement for air seal.

On the other hand, the PDI ones do offer a bit of improved air seal in the range of 1-2% fps increase. It's more noticeable if you convert a gas gun to use this.

I'd actually recommend the Firefly nub... because it's a rubber nub, it offers more give than the hard nubs like what SCS and the Big-Out H-Hop offers. The flexibility in the give will prolong the life of the hop up rubber itself.

But what about consistency? Wouldn't a harder nub give you more consistent hop?

Not necessarily. I prefer flexible nubs, because the pressure remains more consistent against the BB, as there are two levels of flexibility (the bucking and the nub) that will affect the BB, whereas if you have a hard nub, it's just one level of flexibility (the bucking), backed by a fixed (solid) nub. This means a BB sized at 5.95mm will receive the an increased amount of pressure as a BB at full spec of 5.96mm, when it should actually receive a variable amount to deal with the difference in tolerance for an equalized pressure. A flexible nub will allow for a greater range of variation in flexible pressure, whereas a hard nub will limit it.

Anyways, this is just my opinion. I'm not an engineer and have no quantifiable proof of it. I've personally had good experience with SCS, H-Hop, and Firefly nubs... I prefer the Firefly nubs for the durability aspect alone, as it gives the rubber more give.

I think I'm sold on it. Only problem is it's out of stock on every retailer I've looked at :(

That's another reason why I started stocking the PDI ones... the Firefly ones are too hard to keep on the shelf. They fly off too fast, and are difficult to resupply.

If you happen to get any PDI ones in stock, I would be more than interested.

I had a batch come in a couple weeks ago, but they were all presold before I could even post them up! I tried to order 20 of them, but my supplier only had 8 in stock! Am trying to get more...

Damn, anyway you can put me on the list for one? :)

I can do that.

Thanks to my firefly hop rubber, I got into my top choice for university!
I met a beautiful wife who cooks and cleans for me, I got an amazing high paying job, and I became far happier with my life!
I can honestly say I'm a different person after switching to firefly!

I've heard that for 350 fps it is ideal to use a soft hop-up bucking but for higher FPS such as 400 it's better to use a hard one. What is your opinion on this? And do you find it's best to match the hardness of the bucking and the nub or sometimes mix and match?

I wanna add to that, what FPS range is good for the extra soft hop-ups?

I follow the recommendations.

<300fps.

I was under the impression that soft buckings worked best up to ~400 FPS while hard buckings were for ~390+ setups (there is some overlap obviously it's not like it's a totally discrete difference between 399 FPS and 400 FPS).

I've always stuck to:

<300fps: Extra Soft
300-350fps: Soft
>350fps: Hard

But you're right, there is some overlap, and the rules are not completely defined and set in stone. You can definitely use a Soft rubber at 400fps as well, but you'll just have to turn the hop up a bit higher to get it to engage.

I thought there was a medium grade as well?

There may be... I'm just not aware of it. Doesn't mean it doesn't exist, though

Firefly has a medium nub available but thats all the medium I've come across so far.

Yeah, they do. I actually have one in stock. I've just never seen a medium rubber itself. Only extra soft, soft, and hard.

ololol

pepper - YouTube

After browsing around on the forums a lot of people seem to believe the Mad Bull 60 Degree Shark Bucking Hop-Up set is one of the best.

http://www.airsoftparts.ca/store2/in...roducts_id=962