Ghost rocket makes just the connector or various more fulsome kits that include all the springs in the trigger housing and slide. I think the full kit is $49. What springs you get and install is a function of, as John notes above, whether you want to risk possible AD's. On the website, Ghost actually advises against installing certain springs if you are going to carry. I think the 3.5 lb connector itself won't put you at risk (and there are several companies making them). The stock connector is 5.5lb. I have a G20 which is just a range gun so I tried the full Rocket kit and really liked it. I since got a Bobby Carver full trigger and springs replacement kit (everything polished and comes with adjustable trigger over travel, unlike the Ghost where you have to keep filing down the trigger bar until it functions correctly, at which point you have eliminated over travel). The Bobby Carver trigger is four times the price of the Ghost kit. I love the Carver trigger but for the money, the Ghost kit is hard to beat.
