4500Psi Aluminum Air Bottle, 30 Mpa Explosion-Proof Aeronautic PCP Cylinder, M18 * 1.5 Refillable High Pressure Tank for PCP Scuba Game(Empty Tank)

This bottle came on time and is very well made. It is a heavy gauge aluminum and it fit the valve set I bought. I used the "Aopkeo Fill Station Adapter Valve 4500psi for Airsoft PCP Paintball HPA Cylinder Tank Bottle (M18*1.5)" from here on Amazon, and it fit well and sealed. Very happy with this purchase for topping up my Barra 250Z PCP in the field. Great product for the price !!

Great quality and exceptional value in customized airgun applications.

I purchased this cylinder/tank so I can refill my PCP air rifle in the field. This is a fairly small air tank, .5L, but it holds high pressure air without leaking. It's kinda heavy for a small air tank but it was inexpensive and it work for my needs. I would buy again if I needed a second tank.

For what it's worth, it's good. But heavy.

So far, holding pressure. Threads and O-ring cut are sized well. Appears to be well-made. The pressure rating stamping is a bit shallow and difficult to read (fairly visible under angled lighting), but I have no objections. I used the "Aopkeo Fill Station Adapter Valve 4500psi for Airsoft PCP Paintball HPA Cylinder Tank Bottle (M18*1.5)" from here on Amazon, and it fit well and sealed. Once I tightened down the Aopkeo's fill valve snugly, the whole works has held pressure rock steady at nearly 4,000 PSI for a couple of weeks. I've only had it up to just over 4,000 PSI (Aopkeo's pressure gauge reads just under 4,000, my pump says nearly 4,200), but that is about all I plan to fill it to. It's a metal tank - they did not appear to screw it up.