I use this on one of my diving boards
https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.amazon.com/TRIJICON-RMRCC-LOW-Mount-Q-LOC/dp/B0CXTLDWGR&ved=2ahUKEwiP1IqypOiNAxXFODQIHamhDqwQFnoECCEQAQ&usg=AOvVaw0m_9Kmm5gpGx9rda_zw_A7
no, it was a mid length not carbine gas system. Ive run around 28.5 gr through may rifles and have found if my rifle likes factory hornady match this combo will work as well
Do you clean the carbon and grime in the action ? I noticed mine gets sticky after awhile and a good cleaning and light coat of rem oil on the bolt gets her running smooth again