SPECIFICATIONSBRAND: RANGER ARMORYMATERIAL: POLYMERCOLOR: BLACKCOMPATIBILITY: 20MM STANDARD PICATINNY RAILSPACKAGE INCLUDES: 1X VERTICAL FOREGRIPFEATURESMANUFACTURED FROM EXTREME IMPACT-RESISTANT POLYMER TO PROVIDE MAXIMUM LOAD-BEARING STRENGTH AND DURABILITYEASILY MOUNTS ONTO ANY AIRSOFT RIFLE THAT HAS 20MM STANDARD PICATINNY RAILSAN INTERNAL STORAGE COMPARTMENT CARRIES BACK UP CR123 BATTERES FOR YOUR OPTICS (LASERS, LIGHTS, ETC)WATERPROOF, SHOCKPROOF, LIGHTWIEIGHT DESIGN WITH FIELD PROVEN EFFICIENCYERGONOMICALLY GROOVED GRIP SURFACE PROVIDES MAXIMUM CONTROL DURING LONG MATCHES OR INTENSE TRAINING