Redline Airsoft Mini SFR Air System (Model: HPA Engines / Regulator Only)

"My regulator shipped next day and I paid for 3-day shipping, ended up getting to me within 48 hours!

Regulator is great too, for an easy plug and play system for Polarstar you really can't go wrong with this set up. Came out of the box set to 80psi and came with the allen wrench to adjust pressures. My only complaint is the shipping costs, however, seeing as how quickly it got to me I can't really be mad.

10/10

"The reg does what it's supposed to. When you set a psi it stays there and does not lower over time like some other cheaper regs. The allen key adjustment socket is extremely tight and squeaks when you turn it, but I would rather have it be super tight than be super loose. Also for whatever reason the interior allen socket is not to spec so keep the tool it comes with when you get it because from what I have tested nothing else fits so don't lose it.

"Overall a wonderful regulator doing what a regulator is supposed to do; keep everything from being shot out the barrel from over-pressurizing the gun and keeping the HPA engine working with enough pressure in it.

I have used this regulator on several guns, with varying HPA engines and have not once had any issues.

The lowest PSI I have ever used it on was 40 with a Redline N7 Milsim system for an indoor event where I was required to be about .5 joules with a .25 bb

The Highest PSI was on the same airsoft gun with the Redline N7 Milsim and 115 PSI for an outdoor event where I was classed as a DMR. Shooting about 2.81 Joules with a .40bb

Have also used this regulator on a Polarstar Kythera around 90 PSI and have never had any issues with it. On the Kythera the only problem is while this regulator will work down to about 40 PSI the Kythera does not; it needs about 80 PSI to function properly so make sure when you get an HPA engine you check the recommended PSI operation range before you ruin the system by going above or below it.

The built in tourney lock does work but I have only ever been able to use smaller zip-ties with it. Some of the normal size will fit but large ones do not.

One complaint I have about it is depending on the line you use (hose going from regulator to gun) it can be a little loose and will leak some air when first attaching it. I have found twisting the connection pieces (quick connect male and female ends) will stop the air leak.