JMac Customs Billet AR Pistol Grip Black. The PG-AR is the non-skeletonized version of our SPG-AR and uses the same overall dimensions. This gives shooters the opportunity to choose what works best for their particular firearm. Specifications for JMac Customs Billet AR Pistol Grip: Manufacturer: JMac Customs Color: Black Features of JMac Customs Billet AR Pistol Grip Includes Mounting Hardware Compatible with most platforms that accept an "AR" style pistol grip including SCAR. Package Contents: JMac Customs Billet AR Pistol Grip JMac Customs PG-AR: Billet AR Pistol Grip Black