Shop › MIDWEST 15" SLIM LINE HANDGUARD MIDWEST 15" SLIM LINE HANDGUARD $178.95 Midwest Industries Slim Line Handguard, 15" Length, M-LOK, Aluminum, Fits AR-15 Rifles, Includes 5-Slot Polymer Rail, Black Anodized Finish MI-SLH15 Quantity: Add To Cart Added! Midwest Industries Slim Line Handguard, 15" Length, M-LOK, Aluminum, Fits AR-15 Rifles, Includes 5-Slot Polymer Rail, Black Anodized Finish MI-SLH15