Shop › MIDWEST 20 SERIES RAIL 12.6" MLOK MIDWEST 20 SERIES RAIL 12.6" MLOK $246.95 Midwest Industries 20 Series, M-LOK Handguard, 12.625", Anodized Finish, Black, Wrench Included, Fits AR Rifles MI-20XXM Quantity: Add To Cart Added! Midwest Industries 20 Series, M-LOK Handguard, 12.625", Anodized Finish, Black, Wrench Included, Fits AR Rifles MI-20XXM