Wildly different renderings of Weihrauch HW100 Sporter and Carbine

I'm not able to look at and handle the rifles in question in person. If I purchase, I'll be ordering sight unseen. Below I've composited the photos of the HW100 sporter and carbine from Weihrauch's website and Airguns of Arizona's website. I've tried to scale them all in Photoshop close to the same size.

As you can see, AoA shows the sporter with a very long barrel, and Weihrauch shows the carbine with a very short barrel. Based on photos posted of actual guns, neither of those outliers seems particularly accurate.

What I'm interested in is a rifle of size and proportion more like the 2 guns in the middle. I'm not sure whether I should order a sporter or a carbine (I'm already aware of the differences in specifications between them). If anyone has a photo of real-life sporter and carbine side by side, I'd love to see it. It could help me make a purchasing decision.

Thanks!

HW100 comparison.1600970524.jpg

 
Here's the breakdown. 

Weihrauch only makes two air cylinders:

Rifle and Carbine

And they only make three barrel lengths:

310mm, 410mm, and 600mmn

The barrel length is dependent on power level. FAC guns have longer barrels. 

Long story short, in the non-FAC guns the barrels stop just at the end of the airtube, like the logical thing to do. 

In FAC guns, the barrel is longer than the airtube by an obvious amount, which is pretty pointless on the carbine.

Non FAC guns barrel lengths: 

Carbine-310mm, Rifle-410mm

FAC Guns:

Carbine-410mm, Rifle-600mm

Now the synthetic stocked guns on AoA appear to have rifle length tubes and 410mm barrels. No idea what that's about. The Weihrauch site states that they follow the same configuration as above, with barrel length dependent on power level. 
 
Can't verify any of the "specifics" listed above but I have a .177 Carbine from AOA that shoots extremely well out to 50 yards, has plenty of energy for squirrel sized game, and handles easily. I haven't done any chrono work with it, only zeroed and used to eliminate some problem squirrels. I personally wouldn't want any more length for a carry gun than that.
 
Yes, the website is very confusing. The non-FAC guns, 12 fpe, have a shorter barrel, at least in the carbine, as stated above. And the synthetic stocked carbine does appear different also. I have a laminate carbine in .22 and really like it. I wanted the adjustable comb, which is only available in the laminate, I think. I am considering a second one in .177, which would also be a laminate carbine. The additional power of the FAC versions really sucks up the limited air supply, but the shot count is adequate for my use. The full length rifle version has the longer cylinder for more shots, but the balance of the carbine feels right to me. 
 
Yes, the website is very confusing. The non-FAC guns, 12 fpe, have a shorter barrel, at least in the carbine, as stated above. And the synthetic stocked carbine does appear different also. I have a laminate carbine in .22 and really like it. I wanted the adjustable comb, which is only available in the laminate, I think. I am considering a second one in .177, which would also be a laminate carbine. The additional power of the FAC versions really sucks up the limited air supply, but the shot count is adequate for my use. The full length rifle version has the longer cylinder for more shots, but the balance of the carbine feels right to me.

Same here. Mine is also the laminate carbine with adjustable comb and it is a very comfortable rifle to move around. It shoots very well offhand and I wonder how the longer version might feel doing that type shooting.
 
My advice would be to go by the AOA site, and give them a call to verify specs. I believe the Weihrauch site has a lot of "home market" rifles that add to the confusion. My guess, most of those pictured with the small moderator are 12 fpe guns, as well as those with the very short barrels. I know the ones with the shortest barrels and cylinders would be very difficult to tune to FAC power level, and your shot count might be one magazine. It is a very excellent rifle, IMO, but by expanding on a 12 fpe rifle design, you run into limitations on power and shot count. The tune on my carbine gives about 845 fps with the JSP 18 grain pellet, very modest by current standards. But it is very accurate, and a pleasure to shoot.