Axl's weaponry

Unlike X and Zero, Axl primarily uses a variety of guns called Special Arms in conjunction with his A-Trans ability to fight. In Mega Man X7, he only has a few guns, and most of his special weapons are simply weaker versions of X's, while in Mega Man X8 and Mega Man X: Command Mission, he uses a large variety of guns that, while individually weak, are able to fire quickly and have superb range.

Axl Bullet
Axl's standard auto-firing weapon. It's capable of rapid fire shots, and Axl can aim the firearm in eight different directions.

Mega Man X7
The Double Bullet (ダブルバレット) is obtained by defeating Flame Hyenard, and is necessary to use Circle Blaze. It consists of two guns similar to the Axl Bullet.

The G-Launcher (Ｇランチャー) is obtained by defeating Vanishing Gungaroo, and is necessary to use Explosion. It shoots out extremely powerful bursts of energy.

The Ray Gun (レイガン) is obtained by defeating Tornado Tonion, and is necessary to use Volt Tornado. It shoots out laser beams that are slightly slower than the Axl Bullet, but much more powerful. It reappears in Mega Man X8.

Copy Shot/A-Trans
Copy Shot (コピーショット) is Axl's special ability. When fired at enemies of his size, he can retrieve their DNA cores and imitate them, using A-Trans. For example, Runnerbombs in Primrose, Gravity Antonion's stage, allow Axl to walk on spikes without dying when he takes their form. In X7, Axl is also able to absorb the DNA cores of enemies much smaller than himself; instead of transforming, he merely gains the ability to use their special power. In Command Mission, his A-Trans ability is expanded to allow him to copy the larger Maverick bosses, making his A-Trans much more functionally similar to X's boss-based weaponry.

Mega Man X: Command Mission
In Command Mission, Axl's A-Trans is used as his Action Trigger, "DNA Change". After defeating certain bosses, Axl will gain the ability to take their shape by pressing a combination of buttons. The more weapon energy Axl has, the longer he has to finish a command, but if he fails to complete any of them, he will simply fire a weak Copy Shot.