That's what i was thinking, but then i read it closer, and i think by "tabs" he's referring to the 2 little tabs RIGHT below the charging handle that lock into 2 slots right above the buffer tub.
Maybe he will conferm which one he's talking about?

hahaha who cares guys.

bottom line CA if you want to do upgrades, KWA if you play stock

done?

I'd say done. I'll be going with CA, I think.

PS: Will pulling the charging handle and releasing it quickly cause any damage to it or the gun?

nope, that will not damage the gun. I've never seen any metal bodies break because of charging handle being released multiple times.

PS: Thanking people for their help would be a good habit to learn =)

Keep in mind that CA is up-dating their guns a releasing new versions every year...

So some one's experience from 2 years ago is really no longer valid..

From what I've seen of the new CA... It's great. I'm not even sure they still use the same yellow pistons (Haven't opened one up... they shoot nice enough stock)

Edit: The only "Damage" you can do to the gun with the charging handle is reefing it backwards really hard and stretching the spring.

More like, CA if you want reliability in the long term, KWA if you want headache in the long term.

haha I guess you could say that too

Oh don't worry, the thanks was coming:). I just wanted to say thanks at the end of all my questions. So, I'd like to give a BIG thanks to everyone who helped me pick my first M4;).

I wouldn't let it go w/o holding on, pulling it back and just letting it go makes a nasty "clank" on mine and doesn't sound healthy, however cocking it quickly while holding on is perfectly fine.
+1
Well said :)

Thanks guys;)