most any 1913 Picatinny-railed hand guard, the Magpul AFG (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 AFG helps mitigate recoil and control the
weapon to facilitate faster, more accurate follow-up
three-piece design with an interchangeable finger shelf that allows for a flat
"A1-style" surface or an "A2-style" finger nub
MIL-STD-1913 Picatinny and NATO STANAG 4694 rails (min. of ~4"