This is practically brand new, built on October 8th, 2022, fielded once this past Saturday (10/29). This thing is super quiet and extremely accurate. Airsoft Junkies fully built this and set dwell and rps and everything, set to 1.3J at 80psi but obviously you can adjust if you want, I’ve not touched it though. Here’s the specs.

G&G CM18 base (G&G’s mk18)
Wolverine Inferno Spartan Gen 2
260mm Prometheus 6.03 inner barrel
New G&G green hopup bucking
Prowin hopup
7.4v lipo battery.
Flip down ironsights included (not shown)
(1) G&G madcap
Case candy
(4) tan rail covers

Can include for extra $$:
Foam suppressor
Vert grip
Laser included if it doesn’t sell separate beforehand
Eotech Repro