A bit spendy, but I thought worth it to look. Definitely only an upper tier need on a rifle.
http://mailer.allforumhosting.com/link.php?M=1040115&N=3421&L=1181618&F=H
And this is their website:
https://digitrigger.com/
http://mailer.allforumhosting.com/link.php?M=1040115&N=3421&L=1181618&F=H
And this is their website:
https://digitrigger.com/