Armaspec(R) Rhino R-23 Magwell Funnel Grip is designed for compatible AR-15/M4 lower receivers. The accessory combines a flared magazine well funnel with an integrated forward grip to assist magazine insertion and provide an additional gripping surface. It features durable polymer construction with a gray finish.Key Features Designed for compatible AR-15 and M4 lower receivers Flared magazine well funnel design Integrated forward gripping surface Designed to assist with magazine insertion Durable polymer construction Gray finishArmaspec(R) manufactures firearm components and accessories for a variety of firearm platforms. The company develops purpose-built products with an emphasis on functional design durable materials and practical compatibility. Armaspec products include firearm controls recoil-system components magazine-related accessories and other performance-oriented components.