Just had a full rebuild done by negative airsoft.
 
	I now wouldn’t use anyone else.
 
	I have rebuilt my own rifs for years as had 2 “techs” from shops work on them (ruin them) when I first started the rabbit hole of airsoft.
 
	I simply can’t be bothered to do it anymore and frankly having seen and now used his work I wouldn’t recommend anyone else.
 
	A decent air seal, correct air volume and a maple leaf hop rubber with nub means it now throws bbs at 1 joule as far as any of my  r/s hop patch rifs ever has.