Tactical Kinetics 6.5 Grendel 12.5" carbine barrel, medium profile. 4150 CRV nitride with stainless steel barrel extension. 320 rounds through it.
Troy claymore linear compensator with crush washer. Troy phosphate .750" gas block & stainless steel carbine gas tube. Troy USGI barrel nut.
Toolcraft 6.5 Grendel M16 nitride BCG.
Tromix milspec charging handle with extra power handle latch spring.
I purchased all these items new in 2022-2023. I am transitioning to a longer Grendel. This set up shoots 1 MOA at 25yds with 100gr Wolf and 124gr S&B factory ammo. They have served me well.