Tacfire HG20-7: TacFire is proud to announce its new Advanced Combat Engineering (A.C.E.) Series Handguard. This model is extruded from the highest grade of 6061-T6 aluminum and reinforced with a Class-2 Type III black hard anodize finish per MIL-A-8625 standards and specifications. These incredible M-Lok handguards are designed to increase your AR-15 platform\'s modularity and allow the mounting of tactical accessories.