Michael, this model does not but, just in case things changed, I would confirm the UPC code with Ruger Customer Service to know 100% at Telephone: 336-949-5200 (Monday through Friday 8:00am - 5:00pm ET)

sorry it does not come with the BX trigger https://ruger.com/products/1022Carbine/specSheets/31143.html

I looked everywhere and couldn't find anything even on the Ruger website. I don't believe it does but if you want you can contact Ruger at 336-949-5200 Monday thru Friday 8am to 5pm and they'll be able to give a definite answer. Hope this helps.