NEW BARREL TACTICAL HAND GRIP FOR DYE DAM MARKER. THIS IS A GREAT UPGRADE FOR DYE MATRIX MARKER , EASY INSTALLATION. BETTER HANDLING OF YOUR MARKER. LENGTH: 4.7", N.W. (OZ): 6.5, FEATURES: DURABLE POLYMER. Industrial Grade Polymer Precise Fitment Mounts onto Mil Spec M1913 Picatinny Rail OLIVE Color Heavy Duty Vertical Grip is designed using Industrial Grade Polymer for unparralled strength and durability. Ergonomically designed for maximum gripping power and comfort under severe combat situations. LIFETIME WARRANTY BY WWW.TRINITYSUPPLY.COM, BURBANK, CALIFORNIA-USA.