Fitting and operation
All in all it fitted and gives fairly stable joules. What i found bad is that cylinder head was not tightened, piston also was not tightened and did lost it's pom washer inside of cylinder which made pushing whole ting impossible. Also suprising was that piston itself is not a Tokyo Arms piston, but Ares copy of PSS10 from Lay Lax which i found out by taking whole ting apart. Spring also is a laugh... all bended. Yes i am quite dissapointed. After all changed spring to PSS10 M130 and works.