Utilizing modern manufacturing processes, Summit manufactures purpose built gear for a wide range of firearms. Please choose product options by visiting SUMMIT Polymer Stribog Extended M-LOK Handguard. Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Showing the single result Quick View SOLD OUT Out of Stock Quick View Bolt/Charging Handle PartsSummit AR15 Ambi Extended Charging Handle $59.95 Out of stock