It will fit both of them.
Well the stock Tippmann X-7 Phenom weighs almost 4 pounds, I'm not familiar with the core elite sniper but i assume it weighs upwards of 4 pounds
They are for two different styles of play, but in terms of speed and ergonomics, the Rail would be the best gun overall.
Most sporting goods stores have cheap ones, where hunting outlets and online stores will have high quality ones.
There are two versions of the X7, the original is just an A5 with a larger body, the A5 is simply a 98 with a larger body and a cyclone feeder, there is really nothing better about it over the A5 it is just a different look. The X7 phenom on the other hand works on a completely different operating principle. It operates very similarly to an old automag concept where it is basically a mechanical spool valve. The phenom is smoother and quieter than the 98 base (not by huge amounts but it is noticable). It will also be a little more efficient and consistent. If you are asking if the regular X7 is good, it is just as good as an 98, the phenom is a little better HOWEVER, for the money there are much better options out there than either that are not only cheaper but easier to work on, smaller and lighter and basically just better overall markers.
No, besides being expensive, the X7 has a very high rate of fire, two things that are very bad for new players. This will take a lot of money to run as a starter marker, which is the main causes of people stopping playing.
There is a formula for the "difference of squares." In this case, the answer is (x7 - 7)(x7 + 7)
The A-5 with e-grip. It has the reliable Tippmann internals, the cyclone feed, and tombstone line, without all of the excess plastic and price of the X7.
The A5 Is the best out of these mentioned, even wi price considered. It is the same price as a alpha black (bravo one in canada) and a cyclone feed, but is easier to take apart, has more upgrades available, has a tombstone adapter instead of the plug or screw in vertical adapter. The X7 (non Phenom) is just the A5 with more plastic parts for more money. The Tippmann X7 Phenom is a superior marker to all other Tippman's because of its Spool valve and ability to work semi automatically without a battery and fully automatic with a battery.
√x7 = (x7)1/2 = x7/2 ≡ x3.5
Because the electronic trigger runs on a battery, and without it, the sear will not depress and the gun will not fire. The only gun that can fire when its battery out is the Tippmann x7 phenom, and only in semi auto mechanical mode.
400 +shipping to Canada online. They are usually only slightly higher, because of Tippmann's fairly large Canada branch (which mainly produces non sponsored versions of the US ARMY series markers).