Before this was an option, I tried both the Apex and Monarch, definitely prefer the MCARBO mod-2 over both of the others! Install was a breeze, the price is excellent, and they included a 3d printed fixture to drive the pins in and a small Allen wrench for the pretravel adjustment. So far every product I've ordered from MCARBO has exceeded my expectations, and this is no exception. Made my hellcat my new favorite carry piece. Thanks guys!