Although I love the AFG (Angled Fore Grip), I don’t think I’ll be using one on my AR build. The AFG2 is the shorter, slimmer version. The A.R.M.S rail system on the M468 is big and bulky and I don’t think I can get a thumb over bore grip on it.
From Magpul’s site
Compatible with most any 1913 Picatinny-railed hand guard, the Magpul AFG2 (Angled Fore-Grip) takes into account natural body mechanics and provides a comfortable and stable user interface that reduces fatigue and allows for more precise weapon control. By positioning the shooter’s hand high on the centerline of the bore, unlike conventional vertical fore-grips, the AFG2 helps mitigate recoil and control the weapon to facilitate faster, more accurate follow-up shots.