The State of CA is very hard on small business folks these days, so it is difficult to be in any business here let alone anything that sounds like guns.
I am not keeping up these days cause I am retired, but when I was in the defense business I got to meet folks who were airgun experts all over the world. They all knew the McMurray boys dating back to the 30's.
Tim and his friend Larry Durham, are well known for their design contributions to the high performance airgun field (Silhouette, Field Target, Bench Rest) as well as for the McMurray family being the first Crossman Warranty Center.
If the LD Pistol, Steroid Streak, or USFT sound familiar, then you know their work.
Here is the site with some history and resources. I don't give out many recommendations or testimonials, but this one is a no-brainer.
http://mac1airgun.com/