Magpul adjustable stock, adjustable gas block - can tune to save brass life and milder recoil, Badger 20moa rail, muzzle brake - no holes on bottom, top & sides only, extended arm on charging handle to clear scope better, Ergo grip
I don't use mine as a pod, i use it most to pull stock into my shoulder, and use it a lot on position shooting, rocks, barricades, roof, doghouse - i'm using my whole hand (DPMS .260)