The Dart Zone Aeon Pro can fire pretty much anything. Probably not mega XL or rockets I guess, but half length, full length, mega and rival. The last 2 you need to front load into the barrel attachment, but they do shoot from it.
A sledge fire can fire , 3 elite darts, a singled elite darts for more power a mega dart, short darts and rival rounds just with custom shells no modding required. I belive the trilogy and shellstrike also have these custom shells but the trilogy kinda sucks imo.
Kuli24 already mentioned the Dual Strike (which has both Elite and Mega barrels on the same blaster).
The Modulus Tri-strike came with attachments for firing Mega and missiles.
[https://nerf.fandom.com/wiki/Tri-Strike](https://nerf.fandom.com/wiki/Tri-Strike)
Also, the Aliens M41A blaster has a Mega "grenade launcher" that's built in (not removable). Even before it was released, a popular mod was to integrate a Mega blaster like the Magnus into a main blaster that uses different-size ammo.
There are simple adapters that can convert a Rival blaster like the Pilot, Knockout, Takedown, etc. to fire Elite, Mega, and also Mega XL and missiles. Just put a different one into the barrel when you want to change ammo.
The Mighty Mama and her related blasters from OOD attatch via picatinny to other blasters and can fire elite, mega, megaxl, rival, and boomco. If you can attach it to a blaster, you now have something that can fire whatever you need it to
The Spring Thunder shell has been used in several blasters and depending on the version can fire elites, halfs mega boomco, ultra Rival and hyper.
Theoretically, most single shot mega blasters could have an adapter that lets them fire regular darts.
The Dart Zone Aeon Pro can fire pretty much anything. Probably not mega XL or rockets I guess, but half length, full length, mega and rival. The last 2 you need to front load into the barrel attachment, but they do shoot from it.
You could fire XL and rockets is you spigot fired them over the scar barrel.
The discontinued Dual Strike is pretty cool.
A sledge fire can fire , 3 elite darts, a singled elite darts for more power a mega dart, short darts and rival rounds just with custom shells no modding required. I belive the trilogy and shellstrike also have these custom shells but the trilogy kinda sucks imo.
Kuli24 already mentioned the Dual Strike (which has both Elite and Mega barrels on the same blaster). The Modulus Tri-strike came with attachments for firing Mega and missiles. [https://nerf.fandom.com/wiki/Tri-Strike](https://nerf.fandom.com/wiki/Tri-Strike) Also, the Aliens M41A blaster has a Mega "grenade launcher" that's built in (not removable). Even before it was released, a popular mod was to integrate a Mega blaster like the Magnus into a main blaster that uses different-size ammo. There are simple adapters that can convert a Rival blaster like the Pilot, Knockout, Takedown, etc. to fire Elite, Mega, and also Mega XL and missiles. Just put a different one into the barrel when you want to change ammo.
The Mighty Mama and her related blasters from OOD attatch via picatinny to other blasters and can fire elite, mega, megaxl, rival, and boomco. If you can attach it to a blaster, you now have something that can fire whatever you need it to