Luth-AR Pistol AR Grip Wing Ambidexious Black. The full palm swells fill the hand providing a consistent and rapid grip properly positioned to promote accurate and repeatable shots on target. The thumb rests and palm shelfs work together to lock the hand in place shot after shot while the raised trigger finger surface forces the finger into the proper curved position for better trigger control and comfort. Specifications for Luth-AR Pistol AR Grip Wing: Manufacturer: Luth-AR Condition: New Package Contents: Luth-AR Pistol AR Grip Wing screw and washer Luth-AR PG-WG: Pistol AR Grip Wing Ambidexious Black