Flatline Reg

[Drcemento]

inherited my cousins Classic RT. bored with no guns to tech I decided to dig into this bad boy. I'm 100% HPA illiterate, but cleary need to get with the times and get a couple tanks and a compressor to fill them.

at any rate. the RT has this flatline reg and a carbon tank. worth rebuilding? worth sending tank in for a hydro?

reading up on the RT - it seems higher pressure is its friend. the flatline says 3KPSI on it - do I need to be looking for a 4500 system and ditch this stuff?

[Cdn_Cuda]

That tank is dead. 03 is the hydro date I can see, so dead in 2018. You can get just tanks on ANS gear (and likely other sites). No experience with the reg, but others will chime in.

[Levi]

That flatline reg is rebuildable. You can get an o-ring kit for $8: https://www.airgundesigns.com/product-p/001357.htm

The difference between 3K & 4500 psi will be number of shots per fill. The RT's liking high pressure is talking about the input pressure to the gun (what you have the flatline output adjusted to). All other factors being equal, higher input pressures typically make for more of an rt effect.

Like Cuda said, tank is dead you'll need to replace that.

[Toestr]

You'll have to get the sheet metal band that goes around the front to mount this. The cradles for the various other regs won't fit. I'd also recommend the dovetail rail adapter AGD sells. It makes it much easier to swap this between guns.

If you use this on a CF tank you'll obviously be sacrificing the extra 1500 psi it affords you vs aluminum.

The use case for this is really just RT mags or otherwise having a tank that can be adjusted on the fly.

I have one I thought I'd use, but it becomes a pain since I like to use braided hose and I'd have to have multiple hoses with QDs on both ends and they can only be oriented in one direction.

[Spider!]

I like Flatlines, but with a bottle purchase I would probably just get a ninja flex reg. Or put a flex reg on another bottle.

As Toestr noted, you miss that extra capacity of the 4.5k, especially when you're bouncing the trigger on an inefficient mag. You expect about 15 shots per cu in at 4.5k, 10 at 3k.

Flatlines are completely rebuildable, and are handy for custom builds and tweaking old co2 markers on HPA. Please don't trash it.

Be aware that RT valves can be "stiff" after a reg-pin/piston rebuild and not want to bounce well. It may take a case of paint or so to loosen up. You may end up cranking the pressure higher and higher looking for the bounce, then it decides to take off during a game and it bounces around 20 bps. I would keep it around 900 for a game until your get a consistent bounce.

[Tracker]

i had a 4500 flatline, they tended to chew through reg seats, and the pistons are designed in a way that they are easily bent, while changing the aforementioned seat

i dont miss that reg

[Spider!]

Yeah, the 3ks are similar but more basic and reliable. They just don't have much of a niche.