Is there a scope brand or particular model just about all here agree is awesome?

Aloha CP1 

This is a question that can have many answers, what size tube, what size objective, what focal 1st or 2nd, what distances are you shooting, are you shooting target or hunting. If you can be more specific there are a lot of members will chime in. FX crown is a great gun. Me, I like 1st focal scopes. Judging by your budget of $500 you can get a lot of really good scopes, like Athlon, Vortex, MTC, and so on. 

Aloha Keone

Take a look at Discovery they make a great scope for the money. I got mine from airgunopticsplus great service. Just do a search on Discovery scopes on this site you’ll be surprised on what you see check YouTube also. Their scope compare to others costing 2 and 3 times as much.

https://airgunopticsplus.com/collections/all?page=1

good advice Brian. I saw a U-Tube were a employee smaked a scope HARD several times to test it. That test alone convinced me to consider a Discovery for a future purchase.

With your budget you might want to look at the Optisan EVX scopes.

My top picks would be SWFA fixed either 10 or 12X . Bushnell Engage series 4-16 or 3-12 . Leupold Mark AR 4-12 Mildot...if you are wanting a FFP Natchez Shooters Supply has the Weaver Tactical Mildot 5-15 on sale for 499.99. Vortex Tactical FFP is another really good buy . There's a ton of really good scopes out there . These are the ones I like best for $500. There a lot of Scopes that are great choices ....But for just me personally these scopes are just a slight edge above for the price . 

Get the Leupold and be done with it,too much thinking is not a good idea,LOL just make sure your scope as AO adjustment....side focus it nice ,butt better optics is more important ; I like a lighter scope...what is funny to me is a Never see a Burris scope on a air gun and they are good scopes.

Most hunters prefer FFP scope, one reason is to range/size there target. Most target shooters use SFP scopes because of the thinner reticle at higher power settings. (BTW thats a GREAT deal on that weaver scope)

SWFA FIXED 10X.

Scope is a personal choice, you need to test...just remember that the Mounts MUST be as high as possible, if not the magazine will not fit

One consideration no one mentioned is MOA vs Mil reticle and turret. As an American I much prefer MOA-MOA. My mind works in yards, feet, inches, hundredths and fractions of an inch. I know 1 MOA is 1.047 at 100 yards, close enough, but many American made scopes are calibrated such that an adjustment corresponds to exactly 1 inch at 100 yards (known as Shooters MOA).

Buy from midway you can return. No questions ask. I like Nikon X. But doesn’t parallax down enough for air guns.

Athlon is my pick for air rifles. BUT it’s like cars. They all get you there you have to touch and feel

Most hunters prefer FFP scope, one reason is to range/size there target. Most target shooters use SFP scopes because of the thinner reticle at higher power settings. (BTW thats a GREAT deal on that weaver scope)

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I didn’t realize that about SFP scopes. I just thought they were less expensive than FFP.

One consideration no one mentioned is MOA vs Mil reticle and turret. As an American I much prefer MOA-MOA. My mind works in yards, feet, inches, hundredths and fractions of an inch. I know 1 MOA is 1.047 at 100 yards, close enough, but many American made scopes are calibrated such that an adjustment corresponds to exactly 1 inch at 100 yards (known as Shooters MOA).

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MIL and MOA are both angle measurements and I don't have a problem working in either. But I prefer the coarser MIL (milliradian) spacing for my lower power scopes (<16x). For my 24x FFP scopes I prefer the finer MOA (minute-of-angle). Having matching MIL/MIL or MOA/MOA reticle/turrets is convenient, but not really necessary or beneficial on a SFP scope.

If you have a MOA/MOA FFP scope, it should be true MOA, not "shooters MOA". "Shooters MOA" turrets are common on SFP scopes. It would be unusual to see "shooters MOA" turrets on an FFP scope.

Edit: You said that "many American made scopes" use adjustments that correspond to 1" in 100 yards. I only know of foreign made scopes (UTG/Leapers for instance) that still use 1/4" per 100 yard turret clicks. Which American made scopes still do so?

I have several scopes marked 1 click=1/4" at 100 yds. they are older scopes. I should have said that. I assumed they still made them?

MOA is an Imperial measurement. Miliradians or mils is the metric equivalent. Though I am familiar with the metric system I use almost exclusively our Imperial system. My three PCP rifles are .22 caliber. I shoot. 16 and 18 grain pellets. All three will shoot sub 1 MOA. at 50-75 yards. All three shoot at around 900 fps.mv and deliver 28-32 fpe. My shooting range has targets at 25-50-75 and 100yards. I judge wind in Mph. Wind drift and drop in inches. All of these measurements have an metric equivalents, but I don't intuitively know them like I know the Imperial system. I own several Mil dot scopes, they are certainly usable, but for precision shooting especially at distance or in wind, I much prefer MOA. To each their own.

I also am high on Discovery scopes right now, you get a lot of scope for your money. I must admit though, I see a SWFA in my future as well.

boscoebrea " I like a lighter scope…what is funny to me is a Never see a Burris scope on a air gun and they are good scopes."

I have two Burris scopes, one on a Streamline and one on a Wildcat. I really like the glass and function. The only drawback, which for me is not a drawback for many maybe, is that the parallax will only focus down to about 35 yards at 10x. Lower power, not so bad. I don't use it shooting that close very often, that's why I don't mind. But I read a lot on this forum that it would not work for many here.

Both scopes are a part of the Veracity line, on at 20x, one at 16x. Excellent scopes for my money anyway.