I have been wondering which 1 is better flatline or APEX barrel? In terms of ease of use or setup, accuracy, improvement over stock barrel & value for money?

APEX in my opinion. There's a good thread all about the Flatline somewhere. Use the "Search" or have a quick scan of the subforums. I don't think there's an 'Ultimate APEX thread'.

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I'm sure that if you do a search you'll find lots of posts on this...

But my vote is for the APEX. Just toss the stock barrel on it and put the APEX on a real barrel. PPS Brass would be a good choice.

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A5, 12" PPS Brass (.690) with Apex tip, Tacamo HK 416 shroud, Tacamo AK-47 Sight Cover, JCS Gold Powertube, E-Grip (APE), Core CQB Wire Stock w/ RVA, Palmer Inline Stabilizer, Lapco Cyclone Ratchet, 450 round Hopper, 48 oz CO2 with remote line

I like my flatline, but also like my brass. If you want range get a flatline barrel. I played with an APEX and the drop when you shoot was horrible..

This thread might help.

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Flatline all the way!!!! I used a flatline and it was the best barrel i every used. my friend HAD an APEX but got rid of it because all it did was break balls.
FLATLINE FOR SURE

I've shot about 5 cases through my APEX now, never had a single break.

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A5, 12" PPS Brass (.690) with Apex tip, Tacamo HK 416 shroud, Tacamo AK-47 Sight Cover, JCS Gold Powertube, E-Grip (APE), Core CQB Wire Stock w/ RVA, Palmer Inline Stabilizer, Lapco Cyclone Ratchet, 450 round Hopper, 48 oz CO2 with remote line

i voted flatline...when i want my shot to fly straight, i want to be ale to keep my gun level...if i have to tilt it, why bother then? i like the flatline just because its not something i ahve to think about having to set or anything. its just fire and go. i like to be able to use a standard straight barrel with no apex on it and be able to hit targets, cause when i make first shot kills, it makes me feel a lot better that i have tought myself and adjsuted in such a way to adjust for range and be able ot make first shot kills at varying distances.

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SilentDeath12886's Compilation of A-5 Projectshttp://www.a5og.net/5-photo-gallery/...tml#post125307
The E-bolted A-5http://www.a5og.net/5-mods-upgrades/...tml#post108414
The X7 egrip retrofitted A-5 http://www.a5og.net/5-mods-upgrades/...tml#post122941
The old A-5 http://www.a5og.net/showthread.php?t=5009
The 98c backuphttp://www.a5og.net/showthread.php?t=5893

i've had both and the apex takes the crown easily.

much less breakage.
not picky about balls
looks neat
better range
slightly less common
trick shots can be fun

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Shine on!

You can do the same thing with an APEX if you just leave it set to 3 or 4... it's only at the higher settings that you get that initial dip.

Quit simply, the APEX just gives you more options. It's up to you if you choose to take advantage of them. It's also not as picky about paint as the flatline is.

Personally, I almost always leave my APEX set to 3 or 4 (depending on the paintballs I'm using). Never tried to fool around with the trick shots either.

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A5, 12" PPS Brass (.690) with Apex tip, Tacamo HK 416 shroud, Tacamo AK-47 Sight Cover, JCS Gold Powertube, E-Grip (APE), Core CQB Wire Stock w/ RVA, Palmer Inline Stabilizer, Lapco Cyclone Ratchet, 450 round Hopper, 48 oz CO2 with remote line