Details
The Centurion has two tactical rails: one at the stock end of the blaster and one under the muzzle, where the folding bipod is advertised to be attached. It features an integrated shoulder stock similar to that of the Stampede ECS. It has five sling points: two at the rear end of the blaster, and three on the barrel. Its priming indicator is located halfway down its tactical rail.

The priming bolt slot in the side of the blaster is almost half the length of the blaster itself, indicating that this blaster has long priming travel. It features a two-foot plunger tube.
The Centurion's priming mechanism is different when compared to other clip system blasters. In an idle, un-primed position, the Centurion's bolt stays in the rear, allowing the clip to be removed easily. When the priming handle is pulled to the rear and returned to the front, the bolt comes forward and chambers a dart. When the firing trigger is pulled, a dart is fired, and the bolt violently snaps back to the rear position, creating a recoil-like effect. This may confuse users who have used a clip system blaster in the past, as they would try to remove the clip by pulling the bolt to the rear first.
It is advertised to have a firing range of one hundred feet (thirty meters). There is a disclaimer on some of the promotional artwork for the Centurion stating: "Not all Mega Centurion blasters in all markets fire up to 100 feet." This issue may be similar to how N-Strike Elite blaster firing mechanisms were weakened for release in other countries due to foreign safety laws. However, it may be an unwitting admission of inconsistency, due to the reverse plunger system.
Modification
The front barrel attachment of the Centurion is designed to be a permanent fixture; ergo, the blaster is not meant to be loaded without it. However, the clip lock can be temporarily bypassed by depressing a spring mechanism ahead of the clip well, then loading the clip. Additionally, that mechanism can be cut out by drill or dremel for a more permanent solution.

As a further result of the forced barrel lock, transporting the Centurion can be cumbersome. However, with some patient disassembly, two sprung clamps in the barrel attachment and two more in the main blaster can be removed. This allows quite easy removal and replacement of the front piece. Enough friction remains that the attachment should not fall off during typical play. The surgical procedure is best done right after purchasing new and before snapping the front piece into place, although a butter knife can help post-factum.
The Centurion is also compatible with Buzz Bee XL Distance Darts and XL Distance Dart-compatible clips.
The Mega Centurion also has a reported tendency to bend and destroy Mega Darts and some models may lock up and prevent priming. However, all of this is largely due to the inability of most smaller children to properly cycle the bolt all the way back and forth.
Because this was released when N-Strike Mega was a sub-series of N-Strike Elite, this makes it the only N-Strike Elite and N-Strike Mega blaster to have a reverse plunger.
The Centurion has the longest priming mechanism in any Nerf blaster. However, the actual travel of the breech is much shorter.

Of course all that firepower comes with limitations and restrictions.
If you don't get them from long range - you have six chances before having to reload - you can forget about getting them short range. The Nerf N-Strike Elite Mega Centurion has a loading mechanism like the real-life L115Asniper rifle used by the Royal Marines.
As with the real thing, it is a long-winded procedure involving having to cock the weapon back and push the pin forward again before releasing the trigger. That's what gives the blaster its incredibly long range though, so its needed.
Up close and as you can imagine you don't really have time to do this, especially if you are under fire from someone with a Nerf Rapidstrike CS-1that doesn't have the range, but fires a ridiculous 1rounds in six seconds.
Pocket-lint

Even if you do manage to hit them from afar, you should be prepared to lose darts along the way. The darts go so far we've found (in testing of course) they're quickly over neighbours fences, in bushes, basically anywhere and everywhere.
The app, which we've not been able to try, will let you review mission briefs, activate the rangefinder to gauge the distance to your target, and even record the battle, all from your blaster.
Still, if you like playing the sniper, want to get your foe without getting dirty, other than in camo obviously, then this is great fun. https://caramejor.com/mejor-nerf-mega-centurion . Our recommendation though is buy more darts - probably exactly what Nerf would want us to say..