Yeah I'm not really big on action manga, but I'll try one. What would be the best guns blazing action manga? I'd also like it to have a unique, interesting, involving plot. I just feel like I should give one a try........ And no mecha please.

Trigun
Zombie Powder

Current avatar features Badou from Dogs.

Black Lagoon
C.A.T.
Jormungand
Hellsing

Unique, you say...try Dolls and Trinity Blood ( mixed genres ). And I second Hellsing 😃

[img]http://img.userbars.pl/69/13603.gif[/img]
Still the [color=red]bad[/color] cop.

Heres some manga that seem to involve guns:

-Gantz
-Battle Royale
-Black Cat
-Testarotho
-Chrono Crusade
-Gun Blaze West
-Dogs
-Dogs: Bullets & Carnage
-Akumetsu
-Eden
-Akira
-Gunslinger Girl

And I'll throw an anime, because I love it so much, and don't care that you're clearly asking for manga:

Cowboy Bebop

Watch it. Love it. Buy it Dinner. Sleep with it. Stay overnight and cuddle.

This signature was recovered from Hades to serve in my rotting armies.

Elfen Lied
Has an extremely interesting plot and there are a few cool gunfights. (well, one side has guns, anyway.)
Highschool of the Dead
People shooting zombies.

Glados is a bitch. She made me kill the companion cube, the only friend I'll ever have. 😢

Chibidoro-sama=Neko-freak

Gungrave
Gun Blaze West
Blaster Knuckle

SeeYa

Gorath

Emerald
King of Thorns

Wow. A lot of good looking series here! Thanks a lot everyone! Now I have something to keep me occupied for a couple days. 😛

Western Shotgun, manhwa, seem not scanlated yet....

Until Death Do Us Part
Priest
Red Eyes